7942493 has 6 divisors (see below), whose sum is σ = 8600634. Its totient is φ = 7331376.

The previous prime is 7942481. The next prime is 7942499. The reversal of 7942493 is 3942497.

It can be written as a sum of positive squares in 3 ways, for example, as 1369 + 7941124 = 37^2 + 2818^2 .

It is not a de Polignac number, because 7942493 - 2⁴ = 7942477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7942499) 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 5 ways as a sum of consecutive naturals, for example, 23330 + ... + 23667.

It is an arithmetic number, because the mean of its divisors is an integer number (1433439).

Almost surely, 2^7942493 is an apocalyptic number.

It is an amenable number.

7942493 is a deficient number, since it is larger than the sum of its proper divisors (658141).

7942493 is a wasteful number, since it uses less digits than its factorization.

7942493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47023 (or 47010 counting only the distinct ones).

The product of its digits is 54432, while the sum is 38.

The square root of 7942493 is about 2818.2428923001. The cubic root of 7942493 is about 199.5196221092.

The spelling of 7942493 in words is "seven million, nine hundred forty-two thousand, four hundred ninety-three".