77648152 has 16 divisors (see below), whose sum is σ = 147434400. Its totient is φ = 38332320.

The previous prime is 77648119. The next prime is 77648159. The reversal of 77648152 is 25184677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77648159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60799 + ... + 62062.

It is an arithmetic number, because the mean of its divisors is an integer number (9214650).

Almost surely, 2^77648152 is an apocalyptic number.

It is an amenable number.

77648152 is a deficient number, since it is larger than the sum of its proper divisors (69786248).

77648152 is a wasteful number, since it uses less digits than its factorization.

77648152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122946 (or 122942 counting only the distinct ones).

The product of its digits is 94080, while the sum is 40.

The square root of 77648152 is about 8811.8188814796. The cubic root of 77648152 is about 426.6224525581.

The spelling of 77648152 in words is "seventy-seven million, six hundred forty-eight thousand, one hundred fifty-two".