917968055 has 4 divisors (see below), whose sum is σ = 1101561672. Its totient is φ = 734374440.

The previous prime is 917968049. The next prime is 917968061. The reversal of 917968055 is 550869719.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 550869719 = 6217 ⋅88607.

It is an interprime number because it is at equal distance from previous prime (917968049) and next prime (917968061).

It is not a de Polignac number, because 917968055 - 2²⁸ = 649532599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 917967994 and 917968012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91796801 + ... + 91796810.

It is an arithmetic number, because the mean of its divisors is an integer number (275390418).

Almost surely, 2^917968055 is an apocalyptic number.

917968055 is a deficient number, since it is larger than the sum of its proper divisors (183593617).

917968055 is a wasteful number, since it uses less digits than its factorization.

917968055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183593616.

The product of its (nonzero) digits is 680400, while the sum is 50.

The square root of 917968055 is about 30297.9876394456. The cubic root of 917968055 is about 971.8722668975.

The spelling of 917968055 in words is "nine hundred seventeen million, nine hundred sixty-eight thousand, fifty-five".