8904647992 has 8 divisors (see below), whose sum is σ = 16696215000. Its totient is φ = 4452323992.

The previous prime is 8904647987. The next prime is 8904647993. The reversal of 8904647992 is 2997464098.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×8904647992² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8904647993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556540492 + ... + 556540507.

It is an arithmetic number, because the mean of its divisors is an integer number (2087026875).

Almost surely, 2^8904647992 is an apocalyptic number.

It is an amenable number.

8904647992 is a deficient number, since it is larger than the sum of its proper divisors (7791567008).

8904647992 is a wasteful number, since it uses less digits than its factorization.

8904647992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113081005 (or 1113081001 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 58.

The square root of 8904647992 is about 94364.4424134430. The cubic root of 8904647992 is about 2072.7117945014.

The spelling of 8904647992 in words is "eight billion, nine hundred four million, six hundred forty-seven thousand, nine hundred ninety-two".