82649764 has 24 divisors (see below), whose sum is σ = 151623360. Its totient is φ = 39345504.

The previous prime is 82649759. The next prime is 82649783. The reversal of 82649764 is 46794628.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (46).

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, 19107 + ... + 23029.

It is an arithmetic number, because the mean of its divisors is an integer number (6317640).

Almost surely, 2^82649764 is an apocalyptic number.

It is an amenable number.

82649764 is a deficient number, since it is larger than the sum of its proper divisors (68973596).

82649764 is a wasteful number, since it uses less digits than its factorization.

82649764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4179 (or 4177 counting only the distinct ones).

The product of its digits is 580608, while the sum is 46.

The square root of 82649764 is about 9091.1915610661. The cubic root of 82649764 is about 435.5926462101.

The spelling of 82649764 in words is "eighty-two million, six hundred forty-nine thousand, seven hundred sixty-four".