7980742 has 32 divisors (see below), whose sum is σ = 15448320. Its totient is φ = 3000480.

The previous prime is 7980727. The next prime is 7980751. The reversal of 7980742 is 2470897.

It is a happy number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 3573 + ... + 5359.

It is an arithmetic number, because the mean of its divisors is an integer number (482760).

Almost surely, 2^7980742 is an apocalyptic number.

7980742 is the 1787-th heptagonal number.

7980742 is a deficient number, since it is larger than the sum of its proper divisors (7467578).

7980742 is a wasteful number, since it uses less digits than its factorization.

7980742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 7980742 is about 2825.0207078887. The cubic root of 7980742 is about 199.8393877197.

The spelling of 7980742 in words is "seven million, nine hundred eighty thousand, seven hundred forty-two".