7987812604 has 6 divisors (see below), whose sum is σ = 13978672064. Its totient is φ = 3993906300.

The previous prime is 7987812517. The next prime is 7987812607. The reversal of 7987812604 is 4062187897.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7987812607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 998476572 + ... + 998476579.

Almost surely, 2^7987812604 is an apocalyptic number.

It is an amenable number.

7987812604 is a deficient number, since it is larger than the sum of its proper divisors (5990859460).

7987812604 is a wasteful number, since it uses less digits than its factorization.

7987812604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996953155 (or 1996953153 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 52.

The square root of 7987812604 is about 89374.5635178153. The cubic root of 7987812604 is about 1998.9838674915.

The spelling of 7987812604 in words is "seven billion, nine hundred eighty-seven million, eight hundred twelve thousand, six hundred four".