7542379 has 4 divisors (see below), whose sum is σ = 8122576. Its totient is φ = 6962184.

The previous prime is 7542347. The next prime is 7542389. The reversal of 7542379 is 9732457.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7542379 - 2⁵ = 7542347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7542389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290079 + ... + 290104.

It is an arithmetic number, because the mean of its divisors is an integer number (2030644).

Almost surely, 2^7542379 is an apocalyptic number.

7542379 is a deficient number, since it is larger than the sum of its proper divisors (580197).

7542379 is a wasteful number, since it uses less digits than its factorization.

7542379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580196.

The product of its digits is 52920, while the sum is 37.

The square root of 7542379 is about 2746.3391997348. The cubic root of 7542379 is about 196.1113746432. Note that the first 3 decimals are identical.

It can be divided in two parts, 7542 and 379, that added together give a square (7921 = 89²).

The spelling of 7542379 in words is "seven million, five hundred forty-two thousand, three hundred seventy-nine".