890984745 has 48 divisors (see below), whose sum is σ = 1812120960. Its totient is φ = 406887840.

The previous prime is 890984737. The next prime is 890984747. The reversal of 890984745 is 547489098.

890984745 is a `hidden beast` number, since 89 + 0 + 98 + 474 + 5 = 666.

890984745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 890984745 - 2³ = 890984737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 890984691 and 890984700.

It is not an unprimeable number, because it can be changed into a prime (890984747) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 917110 + ... + 918080.

It is an arithmetic number, because the mean of its divisors is an integer number (37752520).

Almost surely, 2^890984745 is an apocalyptic number.

It is an amenable number.

890984745 is an abundant number, since it is smaller than the sum of its proper divisors (921136215).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

890984745 is an frugal number, since it uses more digits than its factorization.

890984745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963 (or 986 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The square root of 890984745 is about 29849.3675812403. The cubic root of 890984745 is about 962.2548072798.

The spelling of 890984745 in words is "eight hundred ninety million, nine hundred eighty-four thousand, seven hundred forty-five".