7979549 has 2 divisors, whose sum is σ = 7979550. Its totient is φ = 7979548.

The previous prime is 7979533. The next prime is 7979561. The reversal of 7979549 is 9459797.

7979549 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6943225 + 1036324 = 2635^2 + 1018^2 .

It is a cyclic number.

It is not a de Polignac number, because 7979549 - 2⁴ = 7979533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7979497 and 7979506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7979599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3989774 + 3989775.

It is an arithmetic number, because the mean of its divisors is an integer number (3989775).

Almost surely, 2^7979549 is an apocalyptic number.

It is an amenable number.

7979549 is a deficient number, since it is larger than the sum of its proper divisors (1).

7979549 is an equidigital number, since it uses as much as digits as its factorization.

7979549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 714420, while the sum is 50.

The square root of 7979549 is about 2824.8095511025. The cubic root of 7979549 is about 199.8294295700.

The spelling of 7979549 in words is "seven million, nine hundred seventy-nine thousand, five hundred forty-nine".