938970121 has 4 divisors (see below), whose sum is σ = 940517632. Its totient is φ = 937422612.

The previous prime is 938970103. The next prime is 938970143. The reversal of 938970121 is 121079839.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 938970121 - 2²⁷ = 804752393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (938970161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 772845 + ... + 774058.

It is an arithmetic number, because the mean of its divisors is an integer number (235129408).

Almost surely, 2^938970121 is an apocalyptic number.

It is an amenable number.

938970121 is a deficient number, since it is larger than the sum of its proper divisors (1547511).

938970121 is a wasteful number, since it uses less digits than its factorization.

938970121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547510.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 938970121 is about 30642.6193560538. The cubic root of 938970121 is about 979.2282279263.

The spelling of 938970121 in words is "nine hundred thirty-eight million, nine hundred seventy thousand, one hundred twenty-one".