76843404 has 72 divisors (see below), whose sum is σ = 219780288. Its totient is φ = 23282640.

The previous prime is 76843381. The next prime is 76843411. The reversal of 76843404 is 40434867.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7099 + ... + 14285.

It is an arithmetic number, because the mean of its divisors is an integer number (3052504).

Almost surely, 2^76843404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76843404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109890144).

76843404 is an abundant number, since it is smaller than the sum of its proper divisors (142936884).

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

76843404 is a wasteful number, since it uses less digits than its factorization.

76843404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7217 (or 7203 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 76843404 is about 8766.0369609077. The cubic root of 76843404 is about 425.1434883436.

The spelling of 76843404 in words is "seventy-six million, eight hundred forty-three thousand, four hundred four".