77261368 has 32 divisors (see below), whose sum is σ = 150163200. Its totient is φ = 37241568.

The previous prime is 77261363. The next prime is 77261369. The reversal of 77261368 is 86316277.

It is a self number, because there is not a number n which added to its sum of digits gives 77261368.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77261363) 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, 25755 + ... + 28597.

It is an arithmetic number, because the mean of its divisors is an integer number (4692600).

Almost surely, 2^77261368 is an apocalyptic number.

It is an amenable number.

77261368 is a deficient number, since it is larger than the sum of its proper divisors (72901832).

77261368 is a wasteful number, since it uses less digits than its factorization.

77261368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2971 (or 2967 counting only the distinct ones).

The product of its digits is 84672, while the sum is 40.

The square root of 77261368 is about 8789.8445947582. The cubic root of 77261368 is about 425.9129036457.

The spelling of 77261368 in words is "seventy-seven million, two hundred sixty-one thousand, three hundred sixty-eight".