7919479 has 2 divisors, whose sum is σ = 7919480. Its totient is φ = 7919478.

The previous prime is 7919459. The next prime is 7919491. The reversal of 7919479 is 9749197.

It is a strong prime.

It is an emirp because it is prime and its reverse (9749197) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7919479 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7919449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3959739 + 3959740.

It is an arithmetic number, because the mean of its divisors is an integer number (3959740).

Almost surely, 2^7919479 is an apocalyptic number.

7919479 is a deficient number, since it is larger than the sum of its proper divisors (1).

7919479 is an equidigital number, since it uses as much as digits as its factorization.

7919479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 142884, while the sum is 46.

The square root of 7919479 is about 2814.1568897274. The cubic root of 7919479 is about 199.3267277322.

The spelling of 7919479 in words is "seven million, nine hundred nineteen thousand, four hundred seventy-nine".