889961634 has 32 divisors (see below), whose sum is σ = 2081784000. Its totient is φ = 281040192.

The previous prime is 889961617. The next prime is 889961689. The reversal of 889961634 is 436169988.

889961634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 432679 + ... + 434730.

It is an arithmetic number, because the mean of its divisors is an integer number (65055750).

Almost surely, 2^889961634 is an apocalyptic number.

889961634 is an abundant number, since it is smaller than the sum of its proper divisors (1191822366).

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

889961634 is a wasteful number, since it uses less digits than its factorization.

889961634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867439 (or 867433 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 889961634 is about 29832.2247578018. The cubic root of 889961634 is about 961.8863495881.

The spelling of 889961634 in words is "eight hundred eighty-nine million, nine hundred sixty-one thousand, six hundred thirty-four".