82815914 has 16 divisors (see below), whose sum is σ = 126140352. Its totient is φ = 40773888.

The previous prime is 82815907. The next prime is 82815919. The reversal of 82815914 is 41951828.

It is a super-2 number, since 2×82815914² = 13716951223310792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82815919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38717 + ... + 40799.

It is an arithmetic number, because the mean of its divisors is an integer number (7883772).

Almost surely, 2^82815914 is an apocalyptic number.

82815914 is a deficient number, since it is larger than the sum of its proper divisors (43324438).

82815914 is a wasteful number, since it uses less digits than its factorization.

82815914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2381.

The product of its digits is 23040, while the sum is 38.

The square root of 82815914 is about 9100.3249392535. The cubic root of 82815914 is about 435.8843400249.

The spelling of 82815914 in words is "eighty-two million, eight hundred fifteen thousand, nine hundred fourteen".