82897031 has 4 divisors (see below), whose sum is σ = 94739472. Its totient is φ = 71054592.

The previous prime is 82896977. The next prime is 82897033. The reversal of 82897031 is 13079828.

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

It is not a de Polignac number, because 82897031 - 2²⁶ = 15788167 is a prime.

It is a super-2 number, since 2×82897031² = 13743835497229922, 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 (82897033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5921210 + ... + 5921223.

It is an arithmetic number, because the mean of its divisors is an integer number (23684868).

Almost surely, 2^82897031 is an apocalyptic number.

82897031 is a deficient number, since it is larger than the sum of its proper divisors (11842441).

82897031 is a wasteful number, since it uses less digits than its factorization.

82897031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11842440.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 82897031 is about 9104.7806673198. The cubic root of 82897031 is about 436.0266077385.

The spelling of 82897031 in words is "eighty-two million, eight hundred ninety-seven thousand, thirty-one".