7979406 has 16 divisors (see below), whose sum is σ = 16184448. Its totient is φ = 2622200.

The previous prime is 7979357. The next prime is 7979423. The reversal of 7979406 is 6049797.

7979406 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×7979406² = 127341840225672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8940 + ... + 9791.

It is an arithmetic number, because the mean of its divisors is an integer number (1011528).

Almost surely, 2^7979406 is an apocalyptic number.

7979406 is an abundant number, since it is smaller than the sum of its proper divisors (8205042).

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

7979406 is a wasteful number, since it uses less digits than its factorization.

7979406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18807.

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 7979406 is about 2824.7842395482. The cubic root of 7979406 is about 199.8282358610.

It can be divided in two parts, 7979 and 406, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 7979406 in words is "seven million, nine hundred seventy-nine thousand, four hundred six".