82647812 has 24 divisors (see below), whose sum is σ = 164923416. Its totient is φ = 35900928.

The previous prime is 82647797. The next prime is 82647827. The reversal of 82647812 is 21874628.

It is an interprime number because it is at equal distance from previous prime (82647797) and next prime (82647827).

It can be written as a sum of positive squares in 4 ways, for example, as 92416 + 82555396 = 304^2 + 9086^2 .

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, 45863 + ... + 47630.

It is an arithmetic number, because the mean of its divisors is an integer number (6871809).

Almost surely, 2^82647812 is an apocalyptic number.

It is an amenable number.

82647812 is a deficient number, since it is larger than the sum of its proper divisors (82275604).

82647812 is a wasteful number, since it uses less digits than its factorization.

82647812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93527 (or 93525 counting only the distinct ones).

The product of its digits is 43008, while the sum is 38.

The square root of 82647812 is about 9091.0842037680. The cubic root of 82647812 is about 435.5892169462.

The spelling of 82647812 in words is "eighty-two million, six hundred forty-seven thousand, eight hundred twelve".