917145936 has 240 divisors, whose sum is σ = 3147804480. Its totient is φ = 254741760.

The previous prime is 917145913. The next prime is 917145949. The reversal of 917145936 is 639541719.

It is a junction number, because it is equal to n+sod(n) for n = 917145891 and 917145900.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 782631 + ... + 783801.

It is an arithmetic number, because the mean of its divisors is an integer number (13115852).

Almost surely, 2^917145936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 917145936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1573902240).

917145936 is an abundant number, since it is smaller than the sum of its proper divisors (2230658544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

917145936 is a wasteful number, since it uses less digits than its factorization.

917145936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239 (or 1220 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 917145936 is about 30284.4173792398. The cubic root of 917145936 is about 971.5820486292.

The spelling of 917145936 in words is "nine hundred seventeen million, one hundred forty-five thousand, nine hundred thirty-six".