77140508 has 12 divisors (see below), whose sum is σ = 135061080. Its totient is φ = 38551632.

The previous prime is 77140501. The next prime is 77140541. The reversal of 77140508 is 80504177.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77140501) 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, 9335 + ... + 15537.

It is an arithmetic number, because the mean of its divisors is an integer number (11255090).

Almost surely, 2^77140508 is an apocalyptic number.

It is an amenable number.

77140508 is a deficient number, since it is larger than the sum of its proper divisors (57920572).

77140508 is a wasteful number, since it uses less digits than its factorization.

77140508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9316 (or 9314 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 77140508 is about 8782.9669246787. The cubic root of 77140508 is about 425.6907024800.

The spelling of 77140508 in words is "seventy-seven million, one hundred forty thousand, five hundred eight".