82470638 has 16 divisors (see below), whose sum is σ = 131426064. Its totient is φ = 38678400.

The previous prime is 82470607. The next prime is 82470649. The reversal of 82470638 is 83607428.

It is a super-2 number, since 2×82470638² = 13602812264254088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6488 + ... + 14388.

It is an arithmetic number, because the mean of its divisors is an integer number (8214129).

Almost surely, 2^82470638 is an apocalyptic number.

82470638 is a deficient number, since it is larger than the sum of its proper divisors (48955426).

82470638 is a wasteful number, since it uses less digits than its factorization.

82470638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8227.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 82470638 is about 9081.3345935496. The cubic root of 82470638 is about 435.2777334149.

The spelling of 82470638 in words is "eighty-two million, four hundred seventy thousand, six hundred thirty-eight".