917261055 has 12 divisors (see below), whose sum is σ = 1589919240. Its totient is φ = 489205872.

The previous prime is 917261053. The next prime is 917261057. The reversal of 917261055 is 550162719.

It is an interprime number because it is at equal distance from previous prime (917261053) and next prime (917261057).

It is not a de Polignac number, because 917261055 - 2¹ = 917261053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (917261053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10191745 + ... + 10191834.

It is an arithmetic number, because the mean of its divisors is an integer number (132493270).

Almost surely, 2^917261055 is an apocalyptic number.

917261055 is a deficient number, since it is larger than the sum of its proper divisors (672658185).

917261055 is a wasteful number, since it uses less digits than its factorization.

917261055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20383590 (or 20383587 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 36.

The square root of 917261055 is about 30286.3179505202. The cubic root of 917261055 is about 971.6226975126.

The spelling of 917261055 in words is "nine hundred seventeen million, two hundred sixty-one thousand, fifty-five".