77304486 has 32 divisors (see below), whose sum is σ = 177424128. Its totient is φ = 21996000.

The previous prime is 77304481. The next prime is 77304499. The reversal of 77304486 is 68440377.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77304481) 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, 6876 + ... + 14208.

It is an arithmetic number, because the mean of its divisors is an integer number (5544504).

Almost surely, 2^77304486 is an apocalyptic number.

77304486 is an abundant number, since it is smaller than the sum of its proper divisors (100119642).

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

77304486 is a wasteful number, since it uses less digits than its factorization.

77304486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7596.

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 77304486 is about 8792.2969695069. The cubic root of 77304486 is about 425.9921200244.

The spelling of 77304486 in words is "seventy-seven million, three hundred four thousand, four hundred eighty-six".