77670752 has 12 divisors (see below), whose sum is σ = 152914356. Its totient is φ = 38835360.

The previous prime is 77670737. The next prime is 77670757. The reversal of 77670752 is 25707677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77670757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1213574 + ... + 1213637.

It is an arithmetic number, because the mean of its divisors is an integer number (12742863).

Almost surely, 2^77670752 is an apocalyptic number.

It is an amenable number.

77670752 is a deficient number, since it is larger than the sum of its proper divisors (75243604).

77670752 is a wasteful number, since it uses less digits than its factorization.

77670752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2427221 (or 2427213 counting only the distinct ones).

The product of its (nonzero) digits is 144060, while the sum is 41.

The square root of 77670752 is about 8813.1011568006. The cubic root of 77670752 is about 426.6638389570.

The spelling of 77670752 in words is "seventy-seven million, six hundred seventy thousand, seven hundred fifty-two".