913861287 has 6 divisors (see below), whose sum is σ = 1320021872. Its totient is φ = 609240852.

The previous prime is 913861283. The next prime is 913861301. The reversal of 913861287 is 782168319.

It is not a de Polignac number, because 913861287 - 2² = 913861283 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (913861283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50770063 + ... + 50770080.

Almost surely, 2^913861287 is an apocalyptic number.

913861287 is a deficient number, since it is larger than the sum of its proper divisors (406160585).

913861287 is a wasteful number, since it uses less digits than its factorization.

913861287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101540149 (or 101540146 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 913861287 is about 30230.1387194965. The cubic root of 913861287 is about 970.4207927381.

The spelling of 913861287 in words is "nine hundred thirteen million, eight hundred sixty-one thousand, two hundred eighty-seven".