7954942 has 4 divisors (see below), whose sum is σ = 11932416. Its totient is φ = 3977470.

The previous prime is 7954937. The next prime is 7954979. The reversal of 7954942 is 2494597.

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

It is a super-2 number, since 2×7954942² = 126562204446728, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 7954895 and 7954904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1988734 + ... + 1988737.

It is an arithmetic number, because the mean of its divisors is an integer number (2983104).

Almost surely, 2^7954942 is an apocalyptic number.

7954942 is a deficient number, since it is larger than the sum of its proper divisors (3977474).

7954942 is a wasteful number, since it uses less digits than its factorization.

7954942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3977473.

The product of its digits is 90720, while the sum is 40.

The square root of 7954942 is about 2820.4506732081. The cubic root of 7954942 is about 199.6238095139.

The spelling of 7954942 in words is "seven million, nine hundred fifty-four thousand, nine hundred forty-two".