7958842 has 8 divisors (see below), whose sum is σ = 11955636. Its totient is φ = 3973632.

The previous prime is 7958837. The next prime is 7958843. The reversal of 7958842 is 2488597.

It can be written as a sum of positive squares in 2 ways, for example, as 7901721 + 57121 = 2811^2 + 239^2 .

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

It is not an unprimeable number, because it can be changed into a prime (7958843) 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, 903 + ... + 4090.

Almost surely, 2^7958842 is an apocalyptic number.

7958842 is a deficient number, since it is larger than the sum of its proper divisors (3996794).

7958842 is a wasteful number, since it uses less digits than its factorization.

7958842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5792.

The product of its digits is 161280, while the sum is 43.

The square root of 7958842 is about 2821.1419673600. The cubic root of 7958842 is about 199.6564267919.

The spelling of 7958842 in words is "seven million, nine hundred fifty-eight thousand, eight hundred forty-two".