77306004 has 36 divisors (see below), whose sum is σ = 206908884. Its totient is φ = 24252672.

The previous prime is 77305997. The next prime is 77306011. The reversal of 77306004 is 40060377.

It is an interprime number because it is at equal distance from previous prime (77305997) and next prime (77306011).

It can be written as a sum of positive squares in 2 ways, for example, as 31337604 + 45968400 = 5598^2 + 6780^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62547 + ... + 63770.

It is an arithmetic number, because the mean of its divisors is an integer number (5747469).

Almost surely, 2^77306004 is an apocalyptic number.

It is an amenable number.

77306004 is an abundant number, since it is smaller than the sum of its proper divisors (129602880).

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

77306004 is a wasteful number, since it uses less digits than its factorization.

77306004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126344 (or 126339 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 77306004 is about 8792.3832946477. The cubic root of 77306004 is about 425.9949083568.

The spelling of 77306004 in words is "seventy-seven million, three hundred six thousand, four".