77501996 has 96 divisors (see below), whose sum is σ = 171376128. Its totient is φ = 30159360.

The previous prime is 77501993. The next prime is 77501999. The reversal of 77501996 is 69910577.

It is an interprime number because it is at equal distance from previous prime (77501993) and next prime (77501999).

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (77501993) 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 31 ways as a sum of consecutive naturals, for example, 565640 + ... + 565776.

It is an arithmetic number, because the mean of its divisors is an integer number (1785168).

Almost surely, 2^77501996 is an apocalyptic number.

It is an amenable number.

77501996 is an abundant number, since it is smaller than the sum of its proper divisors (93874132).

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

77501996 is a wasteful number, since it uses less digits than its factorization.

77501996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 119070, while the sum is 44.

The square root of 77501996 is about 8803.5217952817. The cubic root of 77501996 is about 426.3546093326.

The spelling of 77501996 in words is "seventy-seven million, five hundred one thousand, nine hundred ninety-six".