8938021953 has 8 divisors (see below), whose sum is σ = 13619843008. Its totient is φ = 5107441104.

The previous prime is 8938021901. The next prime is 8938021987. The reversal of 8938021953 is 3591208398.

It is a happy number.

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

It is not a de Polignac number, because 8938021953 - 2⁹ = 8938021441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8938021993) 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, 212810026 + ... + 212810067.

It is an arithmetic number, because the mean of its divisors is an integer number (1702480376).

Almost surely, 2^8938021953 is an apocalyptic number.

It is an amenable number.

8938021953 is a deficient number, since it is larger than the sum of its proper divisors (4681821055).

8938021953 is a wasteful number, since it uses less digits than its factorization.

8938021953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425620103.

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 8938021953 is about 94541.1125013875. The cubic root of 8938021953 is about 2075.2980229416.

The spelling of 8938021953 in words is "eight billion, nine hundred thirty-eight million, twenty-one thousand, nine hundred fifty-three".