77420604 has 48 divisors (see below), whose sum is σ = 187689600. Its totient is φ = 24808896.

The previous prime is 77420591. The next prime is 77420617. The reversal of 77420604 is 40602477.

It is an interprime number because it is at equal distance from previous prime (77420591) and next prime (77420617).

It is a congruent number.

It is an unprimeable number.

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, 131599 + ... + 132185.

It is an arithmetic number, because the mean of its divisors is an integer number (3910200).

Almost surely, 2^77420604 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 77420604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93844800).

77420604 is an abundant number, since it is smaller than the sum of its proper divisors (110268996).

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

77420604 is a wasteful number, since it uses less digits than its factorization.

77420604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002 (or 1000 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 77420604 is about 8798.8978855309. The cubic root of 77420604 is about 426.2053056109.

The spelling of 77420604 in words is "seventy-seven million, four hundred twenty thousand, six hundred four".