989472558 has 32 divisors (see below), whose sum is σ = 2085460992. Its totient is φ = 312356000.

The previous prime is 989472553. The next prime is 989472559. The reversal of 989472558 is 855274989.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 989472498 and 989472507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989472553) 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, 21558 + ... + 49433.

It is an arithmetic number, because the mean of its divisors is an integer number (65170656).

Almost surely, 2^989472558 is an apocalyptic number.

989472558 is an abundant number, since it is smaller than the sum of its proper divisors (1095988434).

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

989472558 is a wasteful number, since it uses less digits than its factorization.

989472558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71120.

The product of its digits is 7257600, while the sum is 57.

The square root of 989472558 is about 31455.8827248577. The cubic root of 989472558 is about 996.4784660222.

The spelling of 989472558 in words is "nine hundred eighty-nine million, four hundred seventy-two thousand, five hundred fifty-eight".