653274859 has 2 divisors, whose sum is σ = 653274860. Its totient is φ = 653274858.

The previous prime is 653274821. The next prime is 653274871. The reversal of 653274859 is 958472356.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 653274859 - 2⁷ = 653274731 is a prime.

It is not a weakly prime, because it can be changed into another prime (653274059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326637429 + 326637430.

It is an arithmetic number, because the mean of its divisors is an integer number (326637430).

Almost surely, 2^653274859 is an apocalyptic number.

653274859 is a deficient number, since it is larger than the sum of its proper divisors (1).

653274859 is an equidigital number, since it uses as much as digits as its factorization.

653274859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1814400, while the sum is 49.

The square root of 653274859 is about 25559.2421444768. The cubic root of 653274859 is about 867.6914438221.

The spelling of 653274859 in words is "six hundred fifty-three million, two hundred seventy-four thousand, eight hundred fifty-nine".