76838428 has 12 divisors (see below), whose sum is σ = 137747232. Its totient is φ = 37482080.

The previous prime is 76838383. The next prime is 76838449. The reversal of 76838428 is 82483867.

It is a super-2 number, since 2×76838428² = 11808288035022368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234100 + ... + 234427.

It is an arithmetic number, because the mean of its divisors is an integer number (11478936).

Almost surely, 2^76838428 is an apocalyptic number.

It is an amenable number.

76838428 is a deficient number, since it is larger than the sum of its proper divisors (60908804).

76838428 is a wasteful number, since it uses less digits than its factorization.

76838428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468572 (or 468570 counting only the distinct ones).

The product of its digits is 516096, while the sum is 46.

The square root of 76838428 is about 8765.7531336446. The cubic root of 76838428 is about 425.1343114134.

The spelling of 76838428 in words is "seventy-six million, eight hundred thirty-eight thousand, four hundred twenty-eight".