77320499 has 8 divisors (see below), whose sum is σ = 79446528. Its totient is φ = 75214600.

The previous prime is 77320487. The next prime is 77320501. The reversal of 77320499 is 99402377.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77320499 - 2¹² = 77316403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77320469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2924 + ... + 12774.

It is an arithmetic number, because the mean of its divisors is an integer number (9930816).

Almost surely, 2^77320499 is an apocalyptic number.

77320499 is a deficient number, since it is larger than the sum of its proper divisors (2126029).

77320499 is a wasteful number, since it uses less digits than its factorization.

77320499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10065.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 77320499 is about 8793.2075490119. The cubic root of 77320499 is about 426.0215316029.

The spelling of 77320499 in words is "seventy-seven million, three hundred twenty thousand, four hundred ninety-nine".