77716140 has 48 divisors (see below), whose sum is σ = 218063328. Its totient is φ = 20680704.

The previous prime is 77716117. The next prime is 77716141. The reversal of 77716140 is 4161777.

It is not an unprimeable number, because it can be changed into a prime (77716141) 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 15 ways as a sum of consecutive naturals, for example, 35724 + ... + 37836.

It is an arithmetic number, because the mean of its divisors is an integer number (4542986).

Almost surely, 2^77716140 is an apocalyptic number.

It is an amenable number.

77716140 is an abundant number, since it is smaller than the sum of its proper divisors (140347188).

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

77716140 is a wasteful number, since it uses less digits than its factorization.

77716140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2738 (or 2736 counting only the distinct ones).

The product of its (nonzero) digits is 8232, while the sum is 33.

The square root of 77716140 is about 8815.6758107362. The cubic root of 77716140 is about 426.7469317853.

The spelling of 77716140 in words is "seventy-seven million, seven hundred sixteen thousand, one hundred forty".