8728572401 has 4 divisors (see below), whose sum is σ = 8810147952. Its totient is φ = 8646996852.

The previous prime is 8728572397. The next prime is 8728572421. The reversal of 8728572401 is 1042758278.

8728572401 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8728572401 - 2² = 8728572397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8728572421) 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, 40787615 + ... + 40787828.

It is an arithmetic number, because the mean of its divisors is an integer number (2202536988).

Almost surely, 2^8728572401 is an apocalyptic number.

It is an amenable number.

8728572401 is a deficient number, since it is larger than the sum of its proper divisors (81575551).

8728572401 is a wasteful number, since it uses less digits than its factorization.

8728572401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81575550.

The product of its (nonzero) digits is 250880, while the sum is 44.

The square root of 8728572401 is about 93426.8291284682. The cubic root of 8728572401 is about 2058.9591940393.

The spelling of 8728572401 in words is "eight billion, seven hundred twenty-eight million, five hundred seventy-two thousand, four hundred one".