76993428 has 24 divisors (see below), whose sum is σ = 180800032. Its totient is φ = 25500384.

The previous prime is 76993421. The next prime is 76993439. The reversal of 76993428 is 82439967.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76993421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18550 + ... + 22317.

Almost surely, 2^76993428 is an apocalyptic number.

It is an amenable number.

76993428 is an abundant number, since it is smaller than the sum of its proper divisors (103806604).

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

76993428 is a wasteful number, since it uses less digits than its factorization.

76993428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41031 (or 41029 counting only the distinct ones).

The product of its digits is 653184, while the sum is 48.

The square root of 76993428 is about 8774.5899049471. The cubic root of 76993428 is about 425.4199825322.

It can be divided in two parts, 76993 and 428, that added together give a triangular number (77421 = T₃₉₃).

The spelling of 76993428 in words is "seventy-six million, nine hundred ninety-three thousand, four hundred twenty-eight".