652771889 has 24 divisors (see below), whose sum is σ = 822744384. Its totient is φ = 506959200.

The previous prime is 652771883. The next prime is 652771921. The reversal of 652771889 is 988177256.

It is not a de Polignac number, because 652771889 - 2¹² = 652767793 is a prime.

It is a super-2 number, since 2×652771889² = 852222278137256642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 652771889.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652771883) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 292799 + ... + 295019.

It is an arithmetic number, because the mean of its divisors is an integer number (34281016).

Almost surely, 2^652771889 is an apocalyptic number.

It is an amenable number.

652771889 is a deficient number, since it is larger than the sum of its proper divisors (169972495).

652771889 is a wasteful number, since it uses less digits than its factorization.

652771889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2597 (or 2586 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 53.

The square root of 652771889 is about 25549.4009518814. The cubic root of 652771889 is about 867.4687020409.

The spelling of 652771889 in words is "six hundred fifty-two million, seven hundred seventy-one thousand, eight hundred eighty-nine".