11997675 has 18 divisors (see below), whose sum is σ = 21489572. Its totient is φ = 6398640.

The previous prime is 11997659. The next prime is 11997679. The reversal of 11997675 is 57679911.

It is not a de Polignac number, because 11997675 - 2⁴ = 11997659 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11997675.

It is not an unprimeable number, because it can be changed into a prime (11997679) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 26437 + ... + 26886.

Almost surely, 2^11997675 is an apocalyptic number.

11997675 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11997675 is a deficient number, since it is larger than the sum of its proper divisors (9491897).

11997675 is a wasteful number, since it uses less digits than its factorization.

11997675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53339 (or 53331 counting only the distinct ones).

The product of its digits is 119070, while the sum is 45.

The square root of 11997675 is about 3463.7660140373. The cubic root of 11997675 is about 228.9280616633.

The spelling of 11997675 in words is "eleven million, nine hundred ninety-seven thousand, six hundred seventy-five".