82947015 has 24 divisors (see below), whose sum is σ = 144061008. Its totient is φ = 44150400.

The previous prime is 82947001. The next prime is 82947019. The reversal of 82947015 is 51074928.

It is not a de Polignac number, because 82947015 - 2⁷ = 82946887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82947019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25512 + ... + 28578.

It is an arithmetic number, because the mean of its divisors is an integer number (6002542).

Almost surely, 2^82947015 is an apocalyptic number.

82947015 is a deficient number, since it is larger than the sum of its proper divisors (61113993).

82947015 is a wasteful number, since it uses less digits than its factorization.

82947015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3679 (or 3676 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 82947015 is about 9107.5251852520. The cubic root of 82947015 is about 436.1142263771.

The spelling of 82947015 in words is "eighty-two million, nine hundred forty-seven thousand, fifteen".