991282366 has 8 divisors (see below), whose sum is σ = 1488927024. Its totient is φ = 494973360.

The previous prime is 991282349. The next prime is 991282367. The reversal of 991282366 is 663282199.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (991282367) 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 3 ways as a sum of consecutive naturals, for example, 332055 + ... + 335026.

It is an arithmetic number, because the mean of its divisors is an integer number (186115878).

Almost surely, 2^991282366 is an apocalyptic number.

991282366 is a deficient number, since it is larger than the sum of its proper divisors (497644658).

991282366 is a wasteful number, since it uses less digits than its factorization.

991282366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667826.

The product of its digits is 279936, while the sum is 46.

The square root of 991282366 is about 31484.6369837735. The cubic root of 991282366 is about 997.0856367378.

The spelling of 991282366 in words is "nine hundred ninety-one million, two hundred eighty-two thousand, three hundred sixty-six".