82477664 has 12 divisors (see below), whose sum is σ = 162377964. Its totient is φ = 41238816.

The previous prime is 82477657. The next prime is 82477667. The reversal of 82477664 is 46677428.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82477667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1288682 + ... + 1288745.

It is an arithmetic number, because the mean of its divisors is an integer number (13531497).

Almost surely, 2^82477664 is an apocalyptic number.

It is an amenable number.

82477664 is a deficient number, since it is larger than the sum of its proper divisors (79900300).

82477664 is a wasteful number, since it uses less digits than its factorization.

82477664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2577437 (or 2577429 counting only the distinct ones).

The product of its digits is 451584, while the sum is 44.

The square root of 82477664 is about 9081.7214227260. The cubic root of 82477664 is about 435.2900940747.

The spelling of 82477664 in words is "eighty-two million, four hundred seventy-seven thousand, six hundred sixty-four".