76861404 has 36 divisors (see below), whose sum is σ = 196221480. Its totient is φ = 25365600.

The previous prime is 76861399. The next prime is 76861409. The reversal of 76861404 is 40416867.

It is an interprime number because it is at equal distance from previous prime (76861399) and next prime (76861409).

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76861409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6934 + ... + 14205.

Almost surely, 2^76861404 is an apocalyptic number.

It is an amenable number.

76861404 is an abundant number, since it is smaller than the sum of its proper divisors (119360076).

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

76861404 is a wasteful number, since it uses less digits than its factorization.

76861404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21250 (or 21245 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 76861404 is about 8767.0635905074. The cubic root of 76861404 is about 425.1766813263.

The spelling of 76861404 in words is "seventy-six million, eight hundred sixty-one thousand, four hundred four".