891916485 has 8 divisors (see below), whose sum is σ = 1427066400. Its totient is φ = 475688784.

The previous prime is 891916463. The next prime is 891916537. The reversal of 891916485 is 584619198.

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

It is not a de Polignac number, because 891916485 - 2⁵ = 891916453 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29730535 + ... + 29730564.

It is an arithmetic number, because the mean of its divisors is an integer number (178383300).

Almost surely, 2^891916485 is an apocalyptic number.

It is an amenable number.

891916485 is a deficient number, since it is larger than the sum of its proper divisors (535149915).

891916485 is a wasteful number, since it uses less digits than its factorization.

891916485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59461107.

The product of its digits is 622080, while the sum is 51.

The square root of 891916485 is about 29864.9708688959. The cubic root of 891916485 is about 962.5901137870.

The spelling of 891916485 in words is "eight hundred ninety-one million, nine hundred sixteen thousand, four hundred eighty-five".