652601897 has 2 divisors, whose sum is σ = 652601898. Its totient is φ = 652601896.

The previous prime is 652601869. The next prime is 652601903. The reversal of 652601897 is 798106256.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 635594521 + 17007376 = 25211^2 + 4124^2 .

It is a cyclic number.

It is not a de Polignac number, because 652601897 - 2²⁰ = 651553321 is a prime.

It is not a weakly prime, because it can be changed into another prime (652601827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326300948 + 326300949.

It is an arithmetic number, because the mean of its divisors is an integer number (326300949).

Almost surely, 2^652601897 is an apocalyptic number.

It is an amenable number.

652601897 is a deficient number, since it is larger than the sum of its proper divisors (1).

652601897 is an equidigital number, since it uses as much as digits as its factorization.

652601897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 652601897 is about 25546.0740036507. The cubic root of 652601897 is about 867.3933947018.

The spelling of 652601897 in words is "six hundred fifty-two million, six hundred one thousand, eight hundred ninety-seven".