8638970 has 8 divisors (see below), whose sum is σ = 15550164. Its totient is φ = 3455584.

The previous prime is 8638967. The next prime is 8638991. The reversal of 8638970 is 798368.

It can be written as a sum of positive squares in 2 ways, for example, as 8602489 + 36481 = 2933^2 + 191^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431939 + ... + 431958.

Almost surely, 2^8638970 is an apocalyptic number.

8638970 is a deficient number, since it is larger than the sum of its proper divisors (6911194).

8638970 is a wasteful number, since it uses less digits than its factorization.

8638970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863904.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 8638970 is about 2939.2124795598. The cubic root of 8638970 is about 205.1889592252.

The spelling of 8638970 in words is "eight million, six hundred thirty-eight thousand, nine hundred seventy".