889297780 has 48 divisors (see below), whose sum is σ = 2136105216. Its totient is φ = 304646400.

The previous prime is 889297757. The next prime is 889297781. The reversal of 889297780 is 87792988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889297781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250377 + ... + 253903.

It is an arithmetic number, because the mean of its divisors is an integer number (44502192).

Almost surely, 2^889297780 is an apocalyptic number.

It is an amenable number.

889297780 is an abundant number, since it is smaller than the sum of its proper divisors (1246807436).

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

889297780 is a wasteful number, since it uses less digits than its factorization.

889297780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5344 (or 5342 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 58.

The square root of 889297780 is about 29821.0962239821. The cubic root of 889297780 is about 961.6471216952.

The spelling of 889297780 in words is "eight hundred eighty-nine million, two hundred ninety-seven thousand, seven hundred eighty".