652818973 has 2 divisors, whose sum is σ = 652818974. Its totient is φ = 652818972.

The previous prime is 652818941. The next prime is 652818979. The reversal of 652818973 is 379818256.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 358799364 + 294019609 = 18942^2 + 17147^2 .

It is a cyclic number.

It is not a de Polignac number, because 652818973 - 2⁵ = 652818941 is a prime.

It is a super-2 number, since 2×652818973² = 852345223017549458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (652818979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326409486 + 326409487.

It is an arithmetic number, because the mean of its divisors is an integer number (326409487).

Almost surely, 2^652818973 is an apocalyptic number.

It is an amenable number.

652818973 is a deficient number, since it is larger than the sum of its proper divisors (1).

652818973 is an equidigital number, since it uses as much as digits as its factorization.

652818973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 49.

The square root of 652818973 is about 25550.3223658724. The cubic root of 652818973 is about 867.4895581853.

The spelling of 652818973 in words is "six hundred fifty-two million, eight hundred eighteen thousand, nine hundred seventy-three".