617723471 has 2 divisors, whose sum is σ = 617723472. Its totient is φ = 617723470.

The previous prime is 617723437. The next prime is 617723479. The reversal of 617723471 is 174327716.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-617723471 is a prime.

It is a super-3 number, since 3×617723471³ (a number of 27 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (617723479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308861735 + 308861736.

It is an arithmetic number, because the mean of its divisors is an integer number (308861736).

Almost surely, 2^617723471 is an apocalyptic number.

617723471 is a deficient number, since it is larger than the sum of its proper divisors (1).

617723471 is an equidigital number, since it uses as much as digits as its factorization.

617723471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 49392, while the sum is 38.

The square root of 617723471 is about 24854.0433531448. The cubic root of 617723471 is about 851.6569621066.

The spelling of 617723471 in words is "six hundred seventeen million, seven hundred twenty-three thousand, four hundred seventy-one".