7994542 has 4 divisors (see below), whose sum is σ = 11991816. Its totient is φ = 3997270.

The previous prime is 7994527. The next prime is 7994557. The reversal of 7994542 is 2454997.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2454997 = 23 ⋅106739.

It is an interprime number because it is at equal distance from previous prime (7994527) and next prime (7994557).

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 = 7994495 and 7994504.

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, 1998634 + ... + 1998637.

It is an arithmetic number, because the mean of its divisors is an integer number (2997954).

Almost surely, 2^7994542 is an apocalyptic number.

7994542 is a deficient number, since it is larger than the sum of its proper divisors (3997274).

7994542 is a wasteful number, since it uses less digits than its factorization.

7994542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3997273.

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

The square root of 7994542 is about 2827.4621129203. The cubic root of 7994542 is about 199.9545063191.

The spelling of 7994542 in words is "seven million, nine hundred ninety-four thousand, five hundred forty-two".