7974994 has 8 divisors (see below), whose sum is σ = 11991420. Its totient is φ = 3977856.

The previous prime is 7974991. The next prime is 7975013. The reversal of 7974994 is 4994797.

It can be written as a sum of positive squares in 2 ways, for example, as 6682225 + 1292769 = 2585^2 + 1137^2 .

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 (7974991) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 3739 + ... + 5470.

Almost surely, 2^7974994 is an apocalyptic number.

7974994 is a deficient number, since it is larger than the sum of its proper divisors (4016426).

7974994 is a wasteful number, since it uses less digits than its factorization.

7974994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9644.

The product of its digits is 571536, while the sum is 49.

The square root of 7974994 is about 2824.0031869670. The cubic root of 7974994 is about 199.7913991708.

The spelling of 7974994 in words is "seven million, nine hundred seventy-four thousand, nine hundred ninety-four".