889772148 has 48 divisors (see below), whose sum is σ = 2312856000. Its totient is φ = 295814304.

The previous prime is 889772141. The next prime is 889772179. The reversal of 889772148 is 841277988.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 889772094 and 889772103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889772141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31423 + ... + 52601.

It is an arithmetic number, because the mean of its divisors is an integer number (48184500).

Almost surely, 2^889772148 is an apocalyptic number.

It is an amenable number.

889772148 is an abundant number, since it is smaller than the sum of its proper divisors (1423083852).

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

889772148 is a wasteful number, since it uses less digits than its factorization.

889772148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21581 (or 21573 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 54.

The square root of 889772148 is about 29829.0487277084. The cubic root of 889772148 is about 961.8180781305.

It can be divided in two parts, 88977 and 2148, that added together give a cube (91125 = 45³).

The spelling of 889772148 in words is "eight hundred eighty-nine million, seven hundred seventy-two thousand, one hundred forty-eight".