57860891 has 4 divisors (see below), whose sum is σ = 63120984. Its totient is φ = 52600800.

The previous prime is 57860863. The next prime is 57860899. The reversal of 57860891 is 19806875.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57860891 - 2⁶ = 57860827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57860899) 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, 2630030 + ... + 2630051.

It is an arithmetic number, because the mean of its divisors is an integer number (15780246).

Almost surely, 2^57860891 is an apocalyptic number.

57860891 is a deficient number, since it is larger than the sum of its proper divisors (5260093).

57860891 is a wasteful number, since it uses less digits than its factorization.

57860891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5260092.

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 57860891 is about 7606.6346698129. The cubic root of 57860891 is about 386.7779486314. Note that the first 3 decimals are identical.

The spelling of 57860891 in words is "fifty-seven million, eight hundred sixty thousand, eight hundred ninety-one".