652990069 has 2 divisors, whose sum is σ = 652990070. Its totient is φ = 652990068.

The previous prime is 652990061. The next prime is 652990127. The reversal of 652990069 is 960099256.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 472410225 + 180579844 = 21735^2 + 13438^2 .

It is a cyclic number.

It is not a de Polignac number, because 652990069 - 2³ = 652990061 is a prime.

It is a super-2 number, since 2×652990069² = 852792060425249522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (652990061) 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 as a sum of consecutive naturals, namely, 326495034 + 326495035.

It is an arithmetic number, because the mean of its divisors is an integer number (326495035).

Almost surely, 2^652990069 is an apocalyptic number.

It is an amenable number.

652990069 is a deficient number, since it is larger than the sum of its proper divisors (1).

652990069 is an equidigital number, since it uses as much as digits as its factorization.

652990069 is an odious number, because the sum of its binary digits is odd.

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

The square root of 652990069 is about 25553.6703625918. The cubic root of 652990069 is about 867.5653377581.

The spelling of 652990069 in words is "six hundred fifty-two million, nine hundred ninety thousand, sixty-nine".