77650496 has 84 divisors (see below), whose sum is σ = 195626736. Its totient is φ = 30240000.

The previous prime is 77650493. The next prime is 77650513. The reversal of 77650496 is 69405677.

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 (77650493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33371 + ... + 35621.

Almost surely, 2^77650496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77650496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97813368).

77650496 is an abundant number, since it is smaller than the sum of its proper divisors (117976240).

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

77650496 is a wasteful number, since it uses less digits than its factorization.

77650496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288 (or 2271 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 44.

The square root of 77650496 is about 8811.9518836635. The cubic root of 77650496 is about 426.6267453968.

The spelling of 77650496 in words is "seventy-seven million, six hundred fifty thousand, four hundred ninety-six".