7976642 has 4 divisors (see below), whose sum is σ = 11964966. Its totient is φ = 3988320.

The previous prime is 7976627. The next prime is 7976651. The reversal of 7976642 is 2466797.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6205081 + 1771561 = 2491^2 + 1331^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7976642.

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 as a sum of consecutive naturals, namely, 1994159 + ... + 1994162.

Almost surely, 2^7976642 is an apocalyptic number.

7976642 is a deficient number, since it is larger than the sum of its proper divisors (3988324).

7976642 is a wasteful number, since it uses less digits than its factorization.

7976642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3988323.

The product of its digits is 127008, while the sum is 41.

The square root of 7976642 is about 2824.2949562678. The cubic root of 7976642 is about 199.8051602490.

The spelling of 7976642 in words is "seven million, nine hundred seventy-six thousand, six hundred forty-two".