82620396 has 18 divisors (see below), whose sum is σ = 208846092. Its totient is φ = 27540120.

The previous prime is 82620389. The next prime is 82620401. The reversal of 82620396 is 69302628.

82620396 is a `hidden beast` number, since 8 + 262 + 0 + 396 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×82620396² = 13652259670393632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2295011 = 82620396 / (8 + 2 + 6 + 2 + 0 + 3 + 9 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 82620396.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1147470 + ... + 1147541.

Almost surely, 2^82620396 is an apocalyptic number.

It is an amenable number.

82620396 is an abundant number, since it is smaller than the sum of its proper divisors (126225696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82620396 is a wasteful number, since it uses less digits than its factorization.

82620396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2295021 (or 2295016 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 82620396 is about 9089.5762277457. The cubic root of 82620396 is about 435.5410469487.

The spelling of 82620396 in words is "eighty-two million, six hundred twenty thousand, three hundred ninety-six".