77496790 has 32 divisors (see below), whose sum is σ = 160605504. Its totient is φ = 26373120.

The previous prime is 77496781. The next prime is 77496799. The reversal of 77496790 is 9769477.

It is an interprime number because it is at equal distance from previous prime (77496781) and next prime (77496799).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77496799) 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, 5550 + ... + 13630.

It is an arithmetic number, because the mean of its divisors is an integer number (5018922).

Almost surely, 2^77496790 is an apocalyptic number.

77496790 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

77496790 is an abundant number, since it is smaller than the sum of its proper divisors (83108714).

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

77496790 is a wasteful number, since it uses less digits than its factorization.

77496790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8232.

The product of its (nonzero) digits is 666792, while the sum is 49.

The square root of 77496790 is about 8803.2261131928. The cubic root of 77496790 is about 426.3450626891.

The spelling of 77496790 in words is "seventy-seven million, four hundred ninety-six thousand, seven hundred ninety".