938649955 has 8 divisors (see below), whose sum is σ = 1140638400. Its totient is φ = 741414336.

The previous prime is 938649953. The next prime is 938649983. The reversal of 938649955 is 559946839.

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 938649955 - 2¹ = 938649953 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 938649955.

It is not an unprimeable number, because it can be changed into a prime (938649953) 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, 1187770 + ... + 1188559.

It is an arithmetic number, because the mean of its divisors is an integer number (142579800).

Almost surely, 2^938649955 is an apocalyptic number.

938649955 is a deficient number, since it is larger than the sum of its proper divisors (201988445).

938649955 is a wasteful number, since it uses less digits than its factorization.

938649955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2376413.

The product of its digits is 10497600, while the sum is 58.

The square root of 938649955 is about 30637.3947162614. The cubic root of 938649955 is about 979.1169175951.

The spelling of 938649955 in words is "nine hundred thirty-eight million, six hundred forty-nine thousand, nine hundred fifty-five".