8247406572 has 18 divisors (see below), whose sum is σ = 20847611148. Its totient is φ = 2749135512.

The previous prime is 8247406511. The next prime is 8247406577. The reversal of 8247406572 is 2756047428.

It is a happy number.

8247406572 is a `hidden beast` number, since 8 + 2 + 4 + 74 + 0 + 6 + 572 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (8247406577) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 114547278 + ... + 114547349.

Almost surely, 2^8247406572 is an apocalyptic number.

It is an amenable number.

8247406572 is an abundant number, since it is smaller than the sum of its proper divisors (12600204576).

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

8247406572 is a wasteful number, since it uses less digits than its factorization.

8247406572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229094637 (or 229094632 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 45.

The square root of 8247406572 is about 90815.2331495108. The cubic root of 8247406572 is about 2020.4082575145.

The spelling of 8247406572 in words is "eight billion, two hundred forty-seven million, four hundred six thousand, five hundred seventy-two".