82690304 has 18 divisors (see below), whose sum is σ = 165058110. Its totient is φ = 41345024.

The previous prime is 82690291. The next prime is 82690351. The reversal of 82690304 is 40309628.

It can be written as a sum of positive squares in only one way, i.e., 80281600 + 2408704 = 8960^2 + 1552^2 .

It is a super-2 number, since 2×82690304² = 13675372751224832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161249 + ... + 161760.

It is an arithmetic number, because the mean of its divisors is an integer number (9169895).

Almost surely, 2^82690304 is an apocalyptic number.

It is an amenable number.

82690304 is a deficient number, since it is larger than the sum of its proper divisors (82367806).

82690304 is an equidigital number, since it uses as much as digits as its factorization.

82690304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323025 (or 323011 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 82690304 is about 9093.4209184443. The cubic root of 82690304 is about 435.6638544772.

The spelling of 82690304 in words is "eighty-two million, six hundred ninety thousand, three hundred four".