7879445 has 24 divisors (see below), whose sum is σ = 11388600. Its totient is φ = 5212032.

The previous prime is 7879427. The next prime is 7879447. The reversal of 7879445 is 5449787.

It can be written as a sum of positive squares in 4 ways, for example, as 196 + 7879249 = 14^2 + 2807^2 .

It is not a de Polignac number, because 7879445 - 2¹⁰ = 7878421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7879396 and 7879405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7879447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6551 + ... + 7659.

It is an arithmetic number, because the mean of its divisors is an integer number (474525).

Almost surely, 2^7879445 is an apocalyptic number.

It is an amenable number.

7879445 is a deficient number, since it is larger than the sum of its proper divisors (3509155).

7879445 is a wasteful number, since it uses less digits than its factorization.

7879445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157 (or 1150 counting only the distinct ones).

The product of its digits is 282240, while the sum is 44.

The square root of 7879445 is about 2807.0349125011. The cubic root of 7879445 is about 198.9902859664.

The spelling of 7879445 in words is "seven million, eight hundred seventy-nine thousand, four hundred forty-five".