890969744 has 90 divisors (see below), whose sum is σ = 2048783490. Its totient is φ = 374212608.

The previous prime is 890969719. The next prime is 890969747. The reversal of 890969744 is 447969098.

It can be written as a sum of positive squares in 3 ways, for example, as 151782400 + 739187344 = 12320^2 + 27188^2 .

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a self number, because there is not a number n which added to its sum of digits gives 890969744.

It is not an unprimeable number, because it can be changed into a prime (890969747) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7884632 + ... + 7884744.

It is an arithmetic number, because the mean of its divisors is an integer number (22764261).

Almost surely, 2^890969744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 890969744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1024391745).

890969744 is an abundant number, since it is smaller than the sum of its proper divisors (1157813746).

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

890969744 is a wasteful number, since it uses less digits than its factorization.

890969744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 56.

The square root of 890969744 is about 29849.1163018271. The cubic root of 890969744 is about 962.2494069385.

The spelling of 890969744 in words is "eight hundred ninety million, nine hundred sixty-nine thousand, seven hundred forty-four".