77032648 has 32 divisors (see below), whose sum is σ = 180077760. Its totient is φ = 30012480.

The previous prime is 77032643. The next prime is 77032667. The reversal of 77032648 is 84623077.

It is not an unprimeable number, because it can be changed into a prime (77032643) 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, 61911 + ... + 63142.

It is an arithmetic number, because the mean of its divisors is an integer number (5627430).

Almost surely, 2^77032648 is an apocalyptic number.

It is an amenable number.

77032648 is an abundant number, since it is smaller than the sum of its proper divisors (103045112).

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

77032648 is a wasteful number, since it uses less digits than its factorization.

77032648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125077 (or 125073 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 77032648 is about 8776.8244826930. The cubic root of 77032648 is about 425.4922057503.

The spelling of 77032648 in words is "seventy-seven million, thirty-two thousand, six hundred forty-eight".