7939381 has 8 divisors (see below), whose sum is σ = 8152704. Its totient is φ = 7728000.

The previous prime is 7939367. The next prime is 7939387. The reversal of 7939381 is 1839397.

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 7939381 - 2¹⁷ = 7808309 is a prime.

It is a super-2 number, since 2×7939381² = 126067541326322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7939387) 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, 11461 + ... + 12133.

It is an arithmetic number, because the mean of its divisors is an integer number (1019088).

Almost surely, 2^7939381 is an apocalyptic number.

It is an amenable number.

7939381 is a deficient number, since it is larger than the sum of its proper divisors (213323).

7939381 is a wasteful number, since it uses less digits than its factorization.

7939381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971.

The product of its digits is 40824, while the sum is 40.

The square root of 7939381 is about 2817.6907211403. The cubic root of 7939381 is about 199.4935603435.

The spelling of 7939381 in words is "seven million, nine hundred thirty-nine thousand, three hundred eighty-one".