938916331 has 8 divisors (see below), whose sum is σ = 1004536400. Its totient is φ = 874916640.

The previous prime is 938916317. The next prime is 938916353. The reversal of 938916331 is 133619839.

It is a happy number.

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 938916331 - 2⁷ = 938916203 is a prime.

It is a super-2 number, since 2×938916331² = 1763127753237003122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (938916361) 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, 403896 + ... + 406213.

It is an arithmetic number, because the mean of its divisors is an integer number (125567050).

Almost surely, 2^938916331 is an apocalyptic number.

938916331 is a deficient number, since it is larger than the sum of its proper divisors (65620069).

938916331 is a wasteful number, since it uses less digits than its factorization.

938916331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810189.

The product of its digits is 104976, while the sum is 43.

The square root of 938916331 is about 30641.7416443648. The cubic root of 938916331 is about 979.2095288250.

The spelling of 938916331 in words is "nine hundred thirty-eight million, nine hundred sixteen thousand, three hundred thirty-one".