7953994 has 8 divisors (see below), whose sum is σ = 12632868. Its totient is φ = 3743040.

The previous prime is 7953971. The next prime is 7954003. The reversal of 7953994 is 4993597.

It can be written as a sum of positive squares in 2 ways, for example, as 7209225 + 744769 = 2685^2 + 863^2 .

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

It is an unprimeable number.

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, 116937 + ... + 117004.

Almost surely, 2^7953994 is an apocalyptic number.

7953994 is a deficient number, since it is larger than the sum of its proper divisors (4678874).

7953994 is a wasteful number, since it uses less digits than its factorization.

7953994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233960.

The product of its digits is 306180, while the sum is 46.

The square root of 7953994 is about 2820.2826099524. The cubic root of 7953994 is about 199.6158793958.

The spelling of 7953994 in words is "seven million, nine hundred fifty-three thousand, nine hundred ninety-four".