77036680 has 32 divisors (see below), whose sum is σ = 198095040. Its totient is φ = 26412480.

The previous prime is 77036671. The next prime is 77036689. The reversal of 77036680 is 8663077.

It is an interprime number because it is at equal distance from previous prime (77036671) and next prime (77036689).

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (77036689) 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, 137286 + ... + 137845.

It is an arithmetic number, because the mean of its divisors is an integer number (6190470).

Almost surely, 2^77036680 is an apocalyptic number.

77036680 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

77036680 is an abundant number, since it is smaller than the sum of its proper divisors (121058360).

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

77036680 is a wasteful number, since it uses less digits than its factorization.

77036680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275149 (or 275145 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 77036680 is about 8777.0541755193. The cubic root of 77036680 is about 425.4996292463.

The spelling of 77036680 in words is "seventy-seven million, thirty-six thousand, six hundred eighty".