652197939 has 16 divisors (see below), whose sum is σ = 876657312. Its totient is φ = 431278848.

The previous prime is 652197937. The next prime is 652197967. The reversal of 652197939 is 939791256.

It is a happy number.

It is not a de Polignac number, because 652197939 - 2¹ = 652197937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 652197891 and 652197900.

It is not an unprimeable number, because it can be changed into a prime (652197937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 448137 + ... + 449589.

It is an arithmetic number, because the mean of its divisors is an integer number (54791082).

Almost surely, 2^652197939 is an apocalyptic number.

652197939 is a deficient number, since it is larger than the sum of its proper divisors (224459373).

652197939 is a wasteful number, since it uses less digits than its factorization.

652197939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566.

The product of its digits is 918540, while the sum is 51.

The square root of 652197939 is about 25538.1663202353. The cubic root of 652197939 is about 867.2143867317.

The spelling of 652197939 in words is "six hundred fifty-two million, one hundred ninety-seven thousand, nine hundred thirty-nine".