82573857 has 16 divisors (see below), whose sum is σ = 122472000. Its totient is φ = 54986112.

The previous prime is 82573853. The next prime is 82573861. The reversal of 82573857 is 75837528.

It is an interprime number because it is at equal distance from previous prime (82573853) and next prime (82573861).

It is not a de Polignac number, because 82573857 - 2² = 82573853 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82573853) 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, 42769 + ... + 44657.

It is an arithmetic number, because the mean of its divisors is an integer number (7654500).

Almost surely, 2^82573857 is an apocalyptic number.

It is an amenable number.

82573857 is a deficient number, since it is larger than the sum of its proper divisors (39898143).

82573857 is a wasteful number, since it uses less digits than its factorization.

82573857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3517 (or 3511 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The square root of 82573857 is about 9087.0158468003. The cubic root of 82573857 is about 435.4592533770.

The spelling of 82573857 in words is "eighty-two million, five hundred seventy-three thousand, eight hundred fifty-seven".