7875242 has 4 divisors (see below), whose sum is σ = 11812866. Its totient is φ = 3937620.

The previous prime is 7875227. The next prime is 7875281. The reversal of 7875242 is 2425787.

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

It can be written as a sum of positive squares in only one way, i.e., 7778521 + 96721 = 2789^2 + 311^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1968809 + ... + 1968812.

Almost surely, 2^7875242 is an apocalyptic number.

7875242 is a deficient number, since it is larger than the sum of its proper divisors (3937624).

7875242 is a wasteful number, since it uses less digits than its factorization.

7875242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3937623.

The product of its digits is 31360, while the sum is 35.

The square root of 7875242 is about 2806.2861578962. The cubic root of 7875242 is about 198.9548983249.

The spelling of 7875242 in words is "seven million, eight hundred seventy-five thousand, two hundred forty-two".