652239919 has 2 divisors, whose sum is σ = 652239920. Its totient is φ = 652239918.

The previous prime is 652239859. The next prime is 652239937. The reversal of 652239919 is 919932256.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 652239919 - 2¹⁵ = 652207151 is a prime.

It is a super-2 number, since 2×652239919² = 850833823874253122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (652239949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326119959 + 326119960.

It is an arithmetic number, because the mean of its divisors is an integer number (326119960).

Almost surely, 2^652239919 is an apocalyptic number.

652239919 is a deficient number, since it is larger than the sum of its proper divisors (1).

652239919 is an equidigital number, since it uses as much as digits as its factorization.

652239919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 262440, while the sum is 46.

The square root of 652239919 is about 25538.9882141012. The cubic root of 652239919 is about 867.2329929843.

The spelling of 652239919 in words is "six hundred fifty-two million, two hundred thirty-nine thousand, nine hundred nineteen".