77328100 has 36 divisors (see below), whose sum is σ = 176638000. Its totient is φ = 29302560.

The previous prime is 77328077. The next prime is 77328101. The reversal of 77328100 is 182377.

It is a happy number.

It is a super-2 number, since 2×77328100² = 11959270099220000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77328101) 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, 18450 + ... + 22249.

Almost surely, 2^77328100 is an apocalyptic number.

It is an amenable number.

77328100 is an abundant number, since it is smaller than the sum of its proper divisors (99309900).

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

77328100 is a wasteful number, since it uses less digits than its factorization.

77328100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40732 (or 40725 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 77328100 is about 8793.6397469990. The cubic root of 77328100 is about 426.0354911763.

The spelling of 77328100 in words is "seventy-seven million, three hundred twenty-eight thousand, one hundred".