7968381 has 8 divisors (see below), whose sum is σ = 10672224. Its totient is φ = 5288400.

The previous prime is 7968379. The next prime is 7968409. The reversal of 7968381 is 1838697.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7968381 - 2¹ = 7968379 is a prime.

It is a super-2 number, since 2×7968381² = 126990191522322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7968341) 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, 5170 + ... + 6531.

It is an arithmetic number, because the mean of its divisors is an integer number (1334028).

Almost surely, 2^7968381 is an apocalyptic number.

It is an amenable number.

7968381 is a deficient number, since it is larger than the sum of its proper divisors (2703843).

7968381 is a wasteful number, since it uses less digits than its factorization.

7968381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11931.

The product of its digits is 72576, while the sum is 42.

The square root of 7968381 is about 2822.8320885239. The cubic root of 7968381 is about 199.7361604298.

The spelling of 7968381 in words is "seven million, nine hundred sixty-eight thousand, three hundred eighty-one".