11858957 has 16 divisors (see below), whose sum is σ = 13547520. Its totient is φ = 10282800.

The previous prime is 11858953. The next prime is 11858969. The reversal of 11858957 is 75985811.

It is a happy number.

11858957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11858957 - 2² = 11858953 is a prime.

It is a super-2 number, since 2×11858957² = 281269722255698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11858953) 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, 28094 + ... + 28512.

It is an arithmetic number, because the mean of its divisors is an integer number (846720).

Almost surely, 2^11858957 is an apocalyptic number.

It is an amenable number.

11858957 is a deficient number, since it is larger than the sum of its proper divisors (1688563).

11858957 is a wasteful number, since it uses less digits than its factorization.

11858957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544.

The product of its digits is 100800, while the sum is 44.

The square root of 11858957 is about 3443.6836381991. The cubic root of 11858957 is about 228.0423449103.

The spelling of 11858957 in words is "eleven million, eight hundred fifty-eight thousand, nine hundred fifty-seven".