11998485 has 12 divisors (see below), whose sum is σ = 20797452. Its totient is φ = 6399168.

The previous prime is 11998439. The next prime is 11998487. The reversal of 11998485 is 58489911.

11998485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8242641 + 3755844 = 2871^2 + 1938^2 .

It is not a de Polignac number, because 11998485 - 2¹⁴ = 11982101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 266633 = 11998485 / (1 + 1 + 9 + 9 + 8 + 4 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 11998485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11998487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133272 + ... + 133361.

It is an arithmetic number, because the mean of its divisors is an integer number (1733121).

Almost surely, 2^11998485 is an apocalyptic number.

11998485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11998485 is a deficient number, since it is larger than the sum of its proper divisors (8798967).

11998485 is a wasteful number, since it uses less digits than its factorization.

11998485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266644 (or 266641 counting only the distinct ones).

The product of its digits is 103680, while the sum is 45.

The square root of 11998485 is about 3463.8829368210. The cubic root of 11998485 is about 228.9332134270.

The spelling of 11998485 in words is "eleven million, nine hundred ninety-eight thousand, four hundred eighty-five".