891445485 has 24 divisors (see below), whose sum is σ = 1659181536. Its totient is φ = 407517600.

The previous prime is 891445483. The next prime is 891445537. The reversal of 891445485 is 584544198.

It is not a de Polignac number, because 891445485 - 2¹ = 891445483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (891445483) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 605691 + ... + 607160.

It is an arithmetic number, because the mean of its divisors is an integer number (69132564).

Almost surely, 2^891445485 is an apocalyptic number.

It is an amenable number.

891445485 is a deficient number, since it is larger than the sum of its proper divisors (767736051).

891445485 is a wasteful number, since it uses less digits than its factorization.

891445485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212873 (or 1212866 counting only the distinct ones).

The product of its digits is 921600, while the sum is 48.

The square root of 891445485 is about 29857.0843352126. The cubic root of 891445485 is about 962.4206435951.

The spelling of 891445485 in words is "eight hundred ninety-one million, four hundred forty-five thousand, four hundred eighty-five".