652431977 has 2 divisors, whose sum is σ = 652431978. Its totient is φ = 652431976.

The previous prime is 652431947. The next prime is 652431979. The reversal of 652431977 is 779134256.

652431977 is digitally balanced in base 2, 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., 394379881 + 258052096 = 19859^2 + 16064^2 .

It is a cyclic number.

It is not a de Polignac number, because 652431977 - 2⁸ = 652431721 is a prime.

It is a super-2 number, since 2×652431977² = 851334969224257058, which contains 22 as substring.

Together with 652431979, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (652431979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326215988 + 326215989.

It is an arithmetic number, because the mean of its divisors is an integer number (326215989).

Almost surely, 2^652431977 is an apocalyptic number.

It is an amenable number.

652431977 is a deficient number, since it is larger than the sum of its proper divisors (1).

652431977 is an equidigital number, since it uses as much as digits as its factorization.

652431977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 44.

The square root of 652431977 is about 25542.7480314864. The cubic root of 652431977 is about 867.3181061887.

The spelling of 652431977 in words is "six hundred fifty-two million, four hundred thirty-one thousand, nine hundred seventy-seven".