917979134 has 8 divisors (see below), whose sum is σ = 1378282008. Its totient is φ = 458551800.

The previous prime is 917979103. The next prime is 917979169. The reversal of 917979134 is 431979719.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216257 + ... + 220460.

It is an arithmetic number, because the mean of its divisors is an integer number (172285251).

Almost surely, 2^917979134 is an apocalyptic number.

917979134 is a deficient number, since it is larger than the sum of its proper divisors (460302874).

917979134 is a wasteful number, since it uses less digits than its factorization.

917979134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437770.

The product of its digits is 428652, while the sum is 50.

The square root of 917979134 is about 30298.1704728190. The cubic root of 917979134 is about 971.8761767392.

The spelling of 917979134 in words is "nine hundred seventeen million, nine hundred seventy-nine thousand, one hundred thirty-four".