8683638401 has 8 divisors (see below), whose sum is σ = 8712932904. Its totient is φ = 8654365440.

The previous prime is 8683638331. The next prime is 8683638427. The reversal of 8683638401 is 1048363868.

It can be written as a sum of positive squares in 4 ways, for example, as 984453376 + 7699185025 = 31376^2 + 87745^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8683638401 - 2²² = 8679444097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8683638701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1349171 + ... + 1355591.

It is an arithmetic number, because the mean of its divisors is an integer number (1089116613).

Almost surely, 2^8683638401 is an apocalyptic number.

It is an amenable number.

8683638401 is a deficient number, since it is larger than the sum of its proper divisors (29294503).

8683638401 is a wasteful number, since it uses less digits than its factorization.

8683638401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10771.

The product of its (nonzero) digits is 663552, while the sum is 47.

The square root of 8683638401 is about 93186.0418785990. The cubic root of 8683638401 is about 2055.4199942340.

The spelling of 8683638401 in words is "eight billion, six hundred eighty-three million, six hundred thirty-eight thousand, four hundred one".