83057865 has 16 divisors (see below), whose sum is σ = 144974016. Its totient is φ = 40270400.

The previous prime is 83057833. The next prime is 83057879. The reversal of 83057865 is 56875038.

It is not a de Polignac number, because 83057865 - 2⁵ = 83057833 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251526 + ... + 251855.

It is an arithmetic number, because the mean of its divisors is an integer number (9060876).

Almost surely, 2^83057865 is an apocalyptic number.

It is an amenable number.

83057865 is a deficient number, since it is larger than the sum of its proper divisors (61916151).

83057865 is a wasteful number, since it uses less digits than its factorization.

83057865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503400.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 83057865 is about 9113.6087802802. The cubic root of 83057865 is about 436.3084135649.

The spelling of 83057865 in words is "eighty-three million, fifty-seven thousand, eight hundred sixty-five".