7979895 has 96 divisors (see below), whose sum is σ = 17971200. Its totient is φ = 3245760.

The previous prime is 7979893. The next prime is 7979911. The reversal of 7979895 is 5989797.

It is not a de Polignac number, because 7979895 - 2¹ = 7979893 is a prime.

It is a super-2 number, since 2×7979895² = 127357448422050, which contains 22 as substring.

Its product of digits (1428840) is a multiple of the sum of its prime factors (90).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7979891) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 169762 + ... + 169808.

It is an arithmetic number, because the mean of its divisors is an integer number (187200).

Almost surely, 2^7979895 is an apocalyptic number.

7979895 is an abundant number, since it is smaller than the sum of its proper divisors (9991305).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7979895 is a wasteful number, since it uses less digits than its factorization.

7979895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 73 counting only the distinct ones).

The product of its digits is 1428840, while the sum is 54.

The square root of 7979895 is about 2824.8707935054. The cubic root of 7979895 is about 199.8323177860.

The spelling of 7979895 in words is "seven million, nine hundred seventy-nine thousand, eight hundred ninety-five".