8638880431 has 8 divisors (see below), whose sum is σ = 9107419104. Its totient is φ = 8178086400.

The previous prime is 8638880417. The next prime is 8638880447. The reversal of 8638880431 is 1340888368.

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 8638880431 - 2¹³ = 8638872239 is a prime.

It is a super-2 number, since 2×8638880431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8638883431) 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, 1933870 + ... + 1938331.

It is an arithmetic number, because the mean of its divisors is an integer number (1138427388).

Almost surely, 2^8638880431 is an apocalyptic number.

8638880431 is a deficient number, since it is larger than the sum of its proper divisors (468538673).

8638880431 is a wasteful number, since it uses less digits than its factorization.

8638880431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3872321.

The product of its (nonzero) digits is 884736, while the sum is 49.

The square root of 8638880431 is about 92945.5777915227. The cubic root of 8638880431 is about 2051.8825008844.

The spelling of 8638880431 in words is "eight billion, six hundred thirty-eight million, eight hundred eighty thousand, four hundred thirty-one".