917749461 has 16 divisors (see below), whose sum is σ = 1238335488. Its totient is φ = 604542000.

The previous prime is 917749447. The next prime is 917749507. The reversal of 917749461 is 164947719.

It is not a de Polignac number, because 917749461 - 2¹⁹ = 917225173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 917749461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (917749421) 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, 81220 + ... + 91826.

It is an arithmetic number, because the mean of its divisors is an integer number (77395968).

Almost surely, 2^917749461 is an apocalyptic number.

It is an amenable number.

917749461 is a deficient number, since it is larger than the sum of its proper divisors (320586027).

917749461 is a wasteful number, since it uses less digits than its factorization.

917749461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10952.

The product of its digits is 381024, while the sum is 48.

The square root of 917749461 is about 30294.3800233641. The cubic root of 917749461 is about 971.7951174039.

The spelling of 917749461 in words is "nine hundred seventeen million, seven hundred forty-nine thousand, four hundred sixty-one".