82314921 has 16 divisors (see below), whose sum is σ = 121080960. Its totient is φ = 49418880.

The previous prime is 82314913. The next prime is 82314929. The reversal of 82314921 is 12941328.

It is an interprime number because it is at equal distance from previous prime (82314913) and next prime (82314929).

It is not a de Polignac number, because 82314921 - 2³ = 82314913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82314929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24141 + ... + 27338.

It is an arithmetic number, because the mean of its divisors is an integer number (7567560).

Almost surely, 2^82314921 is an apocalyptic number.

It is an amenable number.

82314921 is a deficient number, since it is larger than the sum of its proper divisors (38766039).

82314921 is a wasteful number, since it uses less digits than its factorization.

82314921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51536.

The product of its digits is 3456, while the sum is 30.

The square root of 82314921 is about 9072.7570781984. The cubic root of 82314921 is about 435.0036041451.

The spelling of 82314921 in words is "eighty-two million, three hundred fourteen thousand, nine hundred twenty-one".