652394881 has 2 divisors, whose sum is σ = 652394882. Its totient is φ = 652394880.

The previous prime is 652394867. The next prime is 652394903. The reversal of 652394881 is 188493256.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 634586481 + 17808400 = 25191^2 + 4220^2 .

It is a cyclic number.

It is not a de Polignac number, because 652394881 - 2¹³ = 652386689 is a prime.

It is a super-2 number, since 2×652394881² = 851238161510008322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (652394851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326197440 + 326197441.

It is an arithmetic number, because the mean of its divisors is an integer number (326197441).

Almost surely, 2^652394881 is an apocalyptic number.

It is an amenable number.

652394881 is a deficient number, since it is larger than the sum of its proper divisors (1).

652394881 is an equidigital number, since it uses as much as digits as its factorization.

652394881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 46.

The square root of 652394881 is about 25542.0218659369. The cubic root of 652394881 is about 867.3016678761.

The spelling of 652394881 in words is "six hundred fifty-two million, three hundred ninety-four thousand, eight hundred eighty-one".