76697028 has 18 divisors (see below), whose sum is σ = 193873134. Its totient is φ = 25565664.

The previous prime is 76697017. The next prime is 76697039. The reversal of 76697028 is 82079667.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (76697017) and next prime (76697039).

It can be written as a sum of positive squares in only one way, i.e., 42614784 + 34082244 = 6528^2 + 5838^2 .

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

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 5 ways as a sum of consecutive naturals, for example, 1065201 + ... + 1065272.

Almost surely, 2^76697028 is an apocalyptic number.

It is an amenable number.

76697028 is an abundant number, since it is smaller than the sum of its proper divisors (117176106).

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

76697028 is a wasteful number, since it uses less digits than its factorization.

76697028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2130483 (or 2130478 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 76697028 is about 8757.6839404034. The cubic root of 76697028 is about 424.8733703480.

The spelling of 76697028 in words is "seventy-six million, six hundred ninety-seven thousand, twenty-eight".