11975895 has 24 divisors (see below), whose sum is σ = 21267792. Its totient is φ = 6230400.

The previous prime is 11975867. The next prime is 11975897. The reversal of 11975895 is 59857911.

It is not a de Polignac number, because 11975895 - 2⁵ = 11975863 is a prime.

It is a super-2 number, since 2×11975895² = 286844122102050, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 11975895.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11975897) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1401 + ... + 5090.

It is an arithmetic number, because the mean of its divisors is an integer number (886158).

Almost surely, 2^11975895 is an apocalyptic number.

11975895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11975895 is a deficient number, since it is larger than the sum of its proper divisors (9291897).

11975895 is a wasteful number, since it uses less digits than its factorization.

11975895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6543 (or 6540 counting only the distinct ones).

The product of its digits is 113400, while the sum is 45.

The square root of 11975895 is about 3460.6206090816. The cubic root of 11975895 is about 228.7894494357.

The spelling of 11975895 in words is "eleven million, nine hundred seventy-five thousand, eight hundred ninety-five".