11798553 has 16 divisors (see below), whose sum is σ = 17017280. Its totient is φ = 7228224.

The previous prime is 11798543. The next prime is 11798557. The reversal of 11798553 is 35589711.

It is not a de Polignac number, because 11798553 - 2¹⁰ = 11797529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11798557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10503 + ... + 11571.

It is an arithmetic number, because the mean of its divisors is an integer number (1063580).

Almost surely, 2^11798553 is an apocalyptic number.

11798553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11798553 is a deficient number, since it is larger than the sum of its proper divisors (5218727).

11798553 is a wasteful number, since it uses less digits than its factorization.

11798553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368.

The product of its digits is 37800, while the sum is 39.

The square root of 11798553 is about 3434.9021820133. The cubic root of 11798553 is about 227.6545051968.

The spelling of 11798553 in words is "eleven million, seven hundred ninety-eight thousand, five hundred fifty-three".