7974986 has 8 divisors (see below), whose sum is σ = 12048960. Its totient is φ = 3958668.

The previous prime is 7974977. The next prime is 7974991. The reversal of 7974986 is 6894797.

It is a happy number.

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

It is a d-powerful number, because it can be written as 7⁴ + 9⁴ + 7⁷ + 4⁹ + 9⁷ + 8⁷ + 6³ .

It is an unprimeable number.

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, 14066 + ... + 14621.

It is an arithmetic number, because the mean of its divisors is an integer number (1506120).

Almost surely, 2^7974986 is an apocalyptic number.

7974986 is a deficient number, since it is larger than the sum of its proper divisors (4073974).

7974986 is a wasteful number, since it uses less digits than its factorization.

7974986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28828.

The product of its digits is 762048, while the sum is 50.

The square root of 7974986 is about 2824.0017705377. The cubic root of 7974986 is about 199.7913323648.

The spelling of 7974986 in words is "seven million, nine hundred seventy-four thousand, nine hundred eighty-six".