7879641 has 36 divisors (see below), whose sum is σ = 13463856. Its totient is φ = 4084080.

The previous prime is 7879637. The next prime is 7879679. The reversal of 7879641 is 1469787.

It is not a de Polignac number, because 7879641 - 2² = 7879637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7879593 and 7879602.

It is not an unprimeable number, because it can be changed into a prime (7879541) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17566 + ... + 18008.

It is an arithmetic number, because the mean of its divisors is an integer number (373996).

Almost surely, 2^7879641 is an apocalyptic number.

It is an amenable number.

7879641 is a deficient number, since it is larger than the sum of its proper divisors (5584215).

7879641 is a wasteful number, since it uses less digits than its factorization.

7879641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482 (or 464 counting only the distinct ones).

The product of its digits is 84672, while the sum is 42.

The square root of 7879641 is about 2807.0698245680. The cubic root of 7879641 is about 198.9919359038.

The spelling of 7879641 in words is "seven million, eight hundred seventy-nine thousand, six hundred forty-one".