76900020 has 24 divisors (see below), whose sum is σ = 215320224. Its totient is φ = 20506656.

The previous prime is 76900007. The next prime is 76900067. The reversal of 76900020 is 2000967.

It is a super-2 number, since 2×76900020² = 11827226152000800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 640774 + ... + 640893.

It is an arithmetic number, because the mean of its divisors is an integer number (8971676).

Almost surely, 2^76900020 is an apocalyptic number.

It is an amenable number.

76900020 is an abundant number, since it is smaller than the sum of its proper divisors (138420204).

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

76900020 is a wasteful number, since it uses less digits than its factorization.

76900020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281679 (or 1281677 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 76900020 is about 8769.2656477039. The cubic root of 76900020 is about 425.2478738582.

Adding to 76900020 its reverse (2000967), we get a palindrome (78900987).

The spelling of 76900020 in words is "seventy-six million, nine hundred thousand, twenty".