7979854 has 8 divisors (see below), whose sum is σ = 12248280. Its totient is φ = 3897096.

The previous prime is 7979833. The next prime is 7979857. The reversal of 7979854 is 4589797.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×7979854² = 127356139722632, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7979798 and 7979807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7979857) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 46309 + ... + 46480.

It is an arithmetic number, because the mean of its divisors is an integer number (1531035).

Almost surely, 2^7979854 is an apocalyptic number.

7979854 is a deficient number, since it is larger than the sum of its proper divisors (4268426).

7979854 is a wasteful number, since it uses less digits than its factorization.

7979854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92834.

The product of its digits is 635040, while the sum is 49.

The square root of 7979854 is about 2824.8635365270. The cubic root of 7979854 is about 199.8319755451.

The spelling of 7979854 in words is "seven million, nine hundred seventy-nine thousand, eight hundred fifty-four".