57086961 has 8 divisors (see below), whose sum is σ = 76827744. Its totient is φ = 37702080.

The previous prime is 57086959. The next prime is 57086971. The reversal of 57086961 is 16968075.

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

It is not a de Polignac number, because 57086961 - 2¹ = 57086959 is a prime.

It is a super-2 number, since 2×57086961² = 6517842232431042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57086951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88600 + ... + 89241.

It is an arithmetic number, because the mean of its divisors is an integer number (9603468).

Almost surely, 2^57086961 is an apocalyptic number.

It is an amenable number.

57086961 is a deficient number, since it is larger than the sum of its proper divisors (19740783).

57086961 is a wasteful number, since it uses less digits than its factorization.

57086961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177951.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 57086961 is about 7555.5913732811. The cubic root of 57086961 is about 385.0457268451.

The spelling of 57086961 in words is "fifty-seven million, eighty-six thousand, nine hundred sixty-one".