77320504 has 8 divisors (see below), whose sum is σ = 144975960. Its totient is φ = 38660248.

The previous prime is 77320501. The next prime is 77320511. The reversal of 77320504 is 40502377.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×77320504³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77320501) 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 as a sum of consecutive naturals, namely, 4832524 + ... + 4832539.

It is an arithmetic number, because the mean of its divisors is an integer number (18121995).

Almost surely, 2^77320504 is an apocalyptic number.

It is an amenable number.

77320504 is a deficient number, since it is larger than the sum of its proper divisors (67655456).

77320504 is a wasteful number, since it uses less digits than its factorization.

77320504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9665069 (or 9665065 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 77320504 is about 8793.2078333223. The cubic root of 77320504 is about 426.0215407859.

The spelling of 77320504 in words is "seventy-seven million, three hundred twenty thousand, five hundred four".