917661343 has 8 divisors (see below), whose sum is σ = 972546912. Its totient is φ = 862876416.

The previous prime is 917661341. The next prime is 917661359. The reversal of 917661343 is 343166719.

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

It is a cyclic number.

It is not a de Polignac number, because 917661343 - 2¹ = 917661341 is a prime.

It is a super-3 number, since 3×917661343³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 917661296 and 917661305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (917661341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5955 + ... + 43252.

It is an arithmetic number, because the mean of its divisors is an integer number (121568364).

Almost surely, 2^917661343 is an apocalyptic number.

917661343 is a deficient number, since it is larger than the sum of its proper divisors (54885569).

917661343 is a wasteful number, since it uses less digits than its factorization.

917661343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50321.

The product of its digits is 81648, while the sum is 40.

The square root of 917661343 is about 30292.9256262910. The cubic root of 917661343 is about 971.7640140049.

The spelling of 917661343 in words is "nine hundred seventeen million, six hundred sixty-one thousand, three hundred forty-three".