11998546 has 8 divisors (see below), whose sum is σ = 20568960. Its totient is φ = 5142228.

The previous prime is 11998541. The next prime is 11998577. The reversal of 11998546 is 64589911.

11998546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×11998546² = 287930212228232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11998541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428506 + ... + 428533.

It is an arithmetic number, because the mean of its divisors is an integer number (2571120).

Almost surely, 2^11998546 is an apocalyptic number.

11998546 is a deficient number, since it is larger than the sum of its proper divisors (8570414).

11998546 is an equidigital number, since it uses as much as digits as its factorization.

11998546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857048.

The product of its digits is 77760, while the sum is 43.

The square root of 11998546 is about 3463.8917419573. The cubic root of 11998546 is about 228.9336013899.

It can be divided in two parts, 11998 and 546, that added together give a square (12544 = 112²).

The spelling of 11998546 in words is "eleven million, nine hundred ninety-eight thousand, five hundred forty-six".