979146653 has 2 divisors, whose sum is σ = 979146654. Its totient is φ = 979146652.

The previous prime is 979146631. The next prime is 979146659. The reversal of 979146653 is 356641979.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 961186009 + 17960644 = 31003^2 + 4238^2 .

It is a cyclic number.

It is not a de Polignac number, because 979146653 - 2⁸ = 979146397 is a prime.

It is a super-2 number, since 2×979146653² = 1917456336162204818, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (979146659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489573326 + 489573327.

It is an arithmetic number, because the mean of its divisors is an integer number (489573327).

Almost surely, 2^979146653 is an apocalyptic number.

It is an amenable number.

979146653 is a deficient number, since it is larger than the sum of its proper divisors (1).

979146653 is an equidigital number, since it uses as much as digits as its factorization.

979146653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1224720, while the sum is 50.

The square root of 979146653 is about 31291.3191316697. The cubic root of 979146653 is about 992.9999986478. Note that the first 5 decimals are identical.

The spelling of 979146653 in words is "nine hundred seventy-nine million, one hundred forty-six thousand, six hundred fifty-three".