9008138939 has 8 divisors (see below), whose sum is σ = 9163392000. Its totient is φ = 8852971752.

The previous prime is 9008138927. The next prime is 9008138983. The reversal of 9008138939 is 9398318009.

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 9008138939 - 2⁸ = 9008138683 is a prime.

It is a super-2 number, since 2×9008138939² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9008138239) 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, 211742 + ... + 250700.

It is an arithmetic number, because the mean of its divisors is an integer number (1145424000).

Almost surely, 2^9008138939 is an apocalyptic number.

9008138939 is a deficient number, since it is larger than the sum of its proper divisors (155253061).

9008138939 is a wasteful number, since it uses less digits than its factorization.

9008138939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42937.

The product of its (nonzero) digits is 419904, while the sum is 50.

The square root of 9008138939 is about 94911.2160864036. The cubic root of 9008138939 is about 2080.7106591480.

The spelling of 9008138939 in words is "nine billion, eight million, one hundred thirty-eight thousand, nine hundred thirty-nine".