938384865 has 64 divisors (see below), whose sum is σ = 1832544000. Its totient is φ = 451814400.

The previous prime is 938384807. The next prime is 938384891. The reversal of 938384865 is 568483839.

It is a happy number.

It is not a de Polignac number, because 938384865 - 2⁷ = 938384737 is a prime.

It is a super-2 number, since 2×938384865² = 1761132309722136450, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 219145 + ... + 223385.

It is an arithmetic number, because the mean of its divisors is an integer number (28633500).

Almost surely, 2^938384865 is an apocalyptic number.

It is an amenable number.

938384865 is a deficient number, since it is larger than the sum of its proper divisors (894159135).

938384865 is a wasteful number, since it uses less digits than its factorization.

938384865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4415 (or 4409 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The square root of 938384865 is about 30633.0681617105. The cubic root of 938384865 is about 979.0247360741.

The spelling of 938384865 in words is "nine hundred thirty-eight million, three hundred eighty-four thousand, eight hundred sixty-five".