77850312 has 16 divisors (see below), whose sum is σ = 194625840. Its totient is φ = 25950096.

The previous prime is 77850271. The next prime is 77850317. The reversal of 77850312 is 21305877.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (77850317) 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 3 ways as a sum of consecutive naturals, for example, 1621858 + ... + 1621905.

It is an arithmetic number, because the mean of its divisors is an integer number (12164115).

Almost surely, 2^77850312 is an apocalyptic number.

It is an amenable number.

77850312 is an abundant number, since it is smaller than the sum of its proper divisors (116775528).

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

77850312 is a wasteful number, since it uses less digits than its factorization.

77850312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3243772 (or 3243768 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 77850312 is about 8823.2823824244. The cubic root of 77850312 is about 426.9923744541.

The spelling of 77850312 in words is "seventy-seven million, eight hundred fifty thousand, three hundred twelve".