83057863 has 4 divisors (see below), whose sum is σ = 94923280. Its totient is φ = 71192448.

The previous prime is 83057833. The next prime is 83057879. The reversal of 83057863 is 36875038.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36875038 = 2 ⋅18437519.

It is a cyclic number.

It is not a de Polignac number, because 83057863 - 2⁵ = 83057831 is a prime.

It is a super-2 number, since 2×83057863² = 13797217212253538, 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 (83057803) 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, 5932698 + ... + 5932711.

It is an arithmetic number, because the mean of its divisors is an integer number (23730820).

Almost surely, 2^83057863 is an apocalyptic number.

83057863 is a deficient number, since it is larger than the sum of its proper divisors (11865417).

83057863 is a wasteful number, since it uses less digits than its factorization.

83057863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11865416.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 83057863 is about 9113.6086705542. The cubic root of 83057863 is about 436.3084100629.

The spelling of 83057863 in words is "eighty-three million, fifty-seven thousand, eight hundred sixty-three".