76684500 has 72 divisors (see below), whose sum is σ = 241928232. Its totient is φ = 20448000.

The previous prime is 76684471. The next prime is 76684537. The reversal of 76684500 is 548667.

It is a happy number.

76684500 is a `hidden beast` number, since 76 + 6 + 84 + 500 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 51984 + 76632516 = 228^2 + 8754^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4021 + ... + 13020.

Almost surely, 2^76684500 is an apocalyptic number.

It is an amenable number.

76684500 is an abundant number, since it is smaller than the sum of its proper divisors (165243732).

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

76684500 is a wasteful number, since it uses less digits than its factorization.

76684500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17066 (or 17051 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 76684500 is about 8756.9686535924. The cubic root of 76684500 is about 424.8502355818.

The spelling of 76684500 in words is "seventy-six million, six hundred eighty-four thousand, five hundred".