76840628 has 12 divisors (see below), whose sum is σ = 134642592. Its totient is φ = 38371320.

The previous prime is 76840609. The next prime is 76840639. The reversal of 76840628 is 82604867.

It is a super-2 number, since 2×76840628² = 11808964222868768, 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, 8600 + ... + 15087.

It is an arithmetic number, because the mean of its divisors is an integer number (11220216).

Almost surely, 2^76840628 is an apocalyptic number.

It is an amenable number.

76840628 is a deficient number, since it is larger than the sum of its proper divisors (57801964).

76840628 is a wasteful number, since it uses less digits than its factorization.

76840628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24502 (or 24500 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 76840628 is about 8765.8786211081. The cubic root of 76840628 is about 425.1383687867.

The spelling of 76840628 in words is "seventy-six million, eight hundred forty thousand, six hundred twenty-eight".