7479381 has 16 divisors (see below), whose sum is σ = 12274304. Its totient is φ = 3945024.

The previous prime is 7479349. The next prime is 7479391. The reversal of 7479381 is 1839747.

7479381 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7479381 - 2⁵ = 7479349 is a prime.

It is a super-2 number, since 2×7479381² = 111882280286322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7479341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13426 + ... + 13971.

It is an arithmetic number, because the mean of its divisors is an integer number (767144).

Almost surely, 2^7479381 is an apocalyptic number.

It is an amenable number.

7479381 is a deficient number, since it is larger than the sum of its proper divisors (4794923).

7479381 is a wasteful number, since it uses less digits than its factorization.

7479381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27420.

The product of its digits is 42336, while the sum is 39.

The square root of 7479381 is about 2734.8456994865. The cubic root of 7479381 is about 195.5638381885.

The spelling of 7479381 in words is "seven million, four hundred seventy-nine thousand, three hundred eighty-one".