617232653 has 2 divisors, whose sum is σ = 617232654. Its totient is φ = 617232652.

The previous prime is 617232619. The next prime is 617232673. The reversal of 617232653 is 356232716.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 538147204 + 79085449 = 23198^2 + 8893^2 .

It is a cyclic number.

It is not a de Polignac number, because 617232653 - 2²⁰ = 616184077 is a prime.

It is a super-2 number, since 2×617232653² = 761952295858836818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (617232673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308616326 + 308616327.

It is an arithmetic number, because the mean of its divisors is an integer number (308616327).

Almost surely, 2^617232653 is an apocalyptic number.

It is an amenable number.

617232653 is a deficient number, since it is larger than the sum of its proper divisors (1).

617232653 is an equidigital number, since it uses as much as digits as its factorization.

617232653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 35.

The square root of 617232653 is about 24844.1673839153. The cubic root of 617232653 is about 851.4313383196.

The spelling of 617232653 in words is "six hundred seventeen million, two hundred thirty-two thousand, six hundred fifty-three".