938967971 has 4 divisors (see below), whose sum is σ = 952192944. Its totient is φ = 925743000.

The previous prime is 938967947. The next prime is 938967979. The reversal of 938967971 is 179769839.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 179769839 = 353 ⋅509263.

It is a cyclic number.

It is not a de Polignac number, because 938967971 - 2¹⁸ = 938705827 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 938967971.

It is not an unprimeable number, because it can be changed into a prime (938967979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6612380 + ... + 6612521.

It is an arithmetic number, because the mean of its divisors is an integer number (238048236).

Almost surely, 2^938967971 is an apocalyptic number.

938967971 is a deficient number, since it is larger than the sum of its proper divisors (13224973).

938967971 is a wasteful number, since it uses less digits than its factorization.

938967971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13224972.

The product of its digits is 5143824, while the sum is 59.

The square root of 938967971 is about 30642.5842741764. The cubic root of 938967971 is about 979.2274805321.

The spelling of 938967971 in words is "nine hundred thirty-eight million, nine hundred sixty-seven thousand, nine hundred seventy-one".