77489004 has 12 divisors (see below), whose sum is σ = 180807704. Its totient is φ = 25829664.

The previous prime is 77489003. The next prime is 77489017. The reversal of 77489004 is 40098477.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (77489003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3228697 + ... + 3228720.

Almost surely, 2^77489004 is an apocalyptic number.

It is an amenable number.

77489004 is an abundant number, since it is smaller than the sum of its proper divisors (103318700).

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

77489004 is a wasteful number, since it uses less digits than its factorization.

77489004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6457424 (or 6457422 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 77489004 is about 8802.7838778423. The cubic root of 77489004 is about 426.3307841027.

The spelling of 77489004 in words is "seventy-seven million, four hundred eighty-nine thousand, four".