652988791 has 48 divisors (see below), whose sum is σ = 855069696. Its totient is φ = 487289088.

The previous prime is 652988783. The next prime is 652988803. The reversal of 652988791 is 197889256.

It is not a de Polignac number, because 652988791 - 2³ = 652988783 is a prime.

It is a super-2 number, since 2×652988791² = 852788722343283362, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652988701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2802411 + ... + 2802643.

It is an arithmetic number, because the mean of its divisors is an integer number (17813952).

Almost surely, 2^652988791 is an apocalyptic number.

652988791 is a deficient number, since it is larger than the sum of its proper divisors (202080905).

652988791 is a wasteful number, since it uses less digits than its factorization.

652988791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 379 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 55.

The square root of 652988791 is about 25553.6453563870. The cubic root of 652988791 is about 867.5647717723.

The spelling of 652988791 in words is "six hundred fifty-two million, nine hundred eighty-eight thousand, seven hundred ninety-one".