8472904057 has 4 divisors (see below), whose sum is σ = 8971310196. Its totient is φ = 7974497920.

The previous prime is 8472904051. The next prime is 8472904117. The reversal of 8472904057 is 7504092748.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7709542416 + 763361641 = 87804^2 + 27629^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8472904057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8472903998 and 8472904016.

It is not an unprimeable number, because it can be changed into a prime (8472904051) 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, 249203044 + ... + 249203077.

It is an arithmetic number, because the mean of its divisors is an integer number (2242827549).

Almost surely, 2^8472904057 is an apocalyptic number.

It is an amenable number.

8472904057 is a deficient number, since it is larger than the sum of its proper divisors (498406139).

8472904057 is a wasteful number, since it uses less digits than its factorization.

8472904057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498406138.

The product of its (nonzero) digits is 564480, while the sum is 46.

The square root of 8472904057 is about 92048.3788939273. The cubic root of 8472904057 is about 2038.6566878091.

The spelling of 8472904057 in words is "eight billion, four hundred seventy-two million, nine hundred four thousand, fifty-seven".