7520379 has 8 divisors (see below), whose sum is σ = 10463232. Its totient is φ = 4795560.

The previous prime is 7520351. The next prime is 7520389. The reversal of 7520379 is 9730257.

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

It is not a de Polignac number, because 7520379 - 2⁵ = 7520347 is a prime.

It is a super-2 number, since 2×7520379² = 113112200607282, which contains 22 as substring.

7520379 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7520389) 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, 54427 + ... + 54564.

It is an arithmetic number, because the mean of its divisors is an integer number (1307904).

Almost surely, 2^7520379 is an apocalyptic number.

7520379 is a deficient number, since it is larger than the sum of its proper divisors (2942853).

7520379 is a wasteful number, since it uses less digits than its factorization.

7520379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109017.

The product of its (nonzero) digits is 13230, while the sum is 33.

The square root of 7520379 is about 2742.3309428295. The cubic root of 7520379 is about 195.9205130277.

The spelling of 7520379 in words is "seven million, five hundred twenty thousand, three hundred seventy-nine".