617431623 has 8 divisors (see below), whose sum is σ = 830936448. Its totient is φ = 407773944.

The previous prime is 617431603. The next prime is 617431627. The reversal of 617431623 is 326134716.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 617431623 - 2⁶ = 617431559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (617431627) 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 in 7 ways as a sum of consecutive naturals, for example, 961411 + ... + 962052.

It is an arithmetic number, because the mean of its divisors is an integer number (103867056).

Almost surely, 2^617431623 is an apocalyptic number.

617431623 is a deficient number, since it is larger than the sum of its proper divisors (213504825).

617431623 is a wasteful number, since it uses less digits than its factorization.

617431623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1923573.

The product of its digits is 18144, while the sum is 33.

The square root of 617431623 is about 24848.1714216560. The cubic root of 617431623 is about 851.5228171119.

The spelling of 617431623 in words is "six hundred seventeen million, four hundred thirty-one thousand, six hundred twenty-three".