77749032 has 32 divisors (see below), whose sum is σ = 194594400. Its totient is φ = 25886784.

The previous prime is 77749027. The next prime is 77749037. The reversal of 77749032 is 23094777.

It is an interprime number because it is at equal distance from previous prime (77749027) and next prime (77749037).

It is not an unprimeable number, because it can be changed into a prime (77749037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33163 + ... + 35429.

It is an arithmetic number, because the mean of its divisors is an integer number (6081075).

Almost surely, 2^77749032 is an apocalyptic number.

It is an amenable number.

77749032 is an abundant number, since it is smaller than the sum of its proper divisors (116845368).

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

77749032 is a wasteful number, since it uses less digits than its factorization.

77749032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3705 (or 3701 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 39.

The square root of 77749032 is about 8817.5411538592. The cubic root of 77749032 is about 426.8071276910.

The spelling of 77749032 in words is "seventy-seven million, seven hundred forty-nine thousand, thirty-two".