77004912 has 40 divisors (see below), whose sum is σ = 202308480. Its totient is φ = 25232320.

The previous prime is 77004911. The next prime is 77004913. The reversal of 77004912 is 21940077.

It is an interprime number because it is at equal distance from previous prime (77004911) and next prime (77004913).

It is a self number, because there is not a number n which added to its sum of digits gives 77004912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77004911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10764 + ... + 16427.

It is an arithmetic number, because the mean of its divisors is an integer number (5057712).

Almost surely, 2^77004912 is an apocalyptic number.

It is an amenable number.

77004912 is an abundant number, since it is smaller than the sum of its proper divisors (125303568).

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

77004912 is a wasteful number, since it uses less digits than its factorization.

77004912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27261 (or 27255 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 77004912 is about 8775.2442701044. The cubic root of 77004912 is about 425.4411327365.

Adding to 77004912 its reverse (21940077), we get a palindrome (98944989).

The spelling of 77004912 in words is "seventy-seven million, four thousand, nine hundred twelve".