916281663 has 16 divisors (see below), whose sum is σ = 1375767552. Its totient is φ = 537408000.

The previous prime is 916281617. The next prime is 916281679. The reversal of 916281663 is 366182619.

It is not a de Polignac number, because 916281663 - 2⁶ = 916281599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (916281683) 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 15 ways as a sum of consecutive naturals, for example, 446818 + ... + 448863.

It is an arithmetic number, because the mean of its divisors is an integer number (85985472).

Almost surely, 2^916281663 is an apocalyptic number.

916281663 is a gapful number since it is divisible by the number (93) formed by its first and last digit.

916281663 is a deficient number, since it is larger than the sum of its proper divisors (459485889).

916281663 is a wasteful number, since it uses less digits than its factorization.

916281663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895726.

The product of its digits is 93312, while the sum is 42.

The square root of 916281663 is about 30270.1447469284. The cubic root of 916281663 is about 971.2767624129.

The spelling of 916281663 in words is "nine hundred sixteen million, two hundred eighty-one thousand, six hundred sixty-three".