617469993 has 16 divisors (see below), whose sum is σ = 1045452160. Its totient is φ = 352839888.

The previous prime is 617469991. The next prime is 617470003. The reversal of 617469993 is 399964716.

It is not a de Polignac number, because 617469993 - 2¹ = 617469991 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (617469991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1633330 + ... + 1633707.

It is an arithmetic number, because the mean of its divisors is an integer number (65340760).

Almost surely, 2^617469993 is an apocalyptic number.

617469993 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

617469993 is a deficient number, since it is larger than the sum of its proper divisors (427982167).

617469993 is a wasteful number, since it uses less digits than its factorization.

617469993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3267053 (or 3267047 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 54.

The square root of 617469993 is about 24848.9434986681. The cubic root of 617469993 is about 851.5404559092.

It can be divided in two parts, 6174 and 69993, that added together give a palindrome (76167).

The spelling of 617469993 in words is "six hundred seventeen million, four hundred sixty-nine thousand, nine hundred ninety-three".