989934452 has 12 divisors (see below), whose sum is σ = 1865645796. Its totient is φ = 456892800.

The previous prime is 989934437. The next prime is 989934479. The reversal of 989934452 is 254439989.

It can be written as a sum of positive squares in 2 ways, for example, as 587771536 + 402162916 = 24244^2 + 20054^2 .

It is a junction number, because it is equal to n+sod(n) for n = 989934394 and 989934403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9518549 + ... + 9518652.

It is an arithmetic number, because the mean of its divisors is an integer number (155470483).

Almost surely, 2^989934452 is an apocalyptic number.

It is an amenable number.

989934452 is a deficient number, since it is larger than the sum of its proper divisors (875711344).

989934452 is a wasteful number, since it uses less digits than its factorization.

989934452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19037218 (or 19037216 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 53.

The square root of 989934452 is about 31463.2238017658. The cubic root of 989934452 is about 996.6334967068.

The spelling of 989934452 in words is "nine hundred eighty-nine million, nine hundred thirty-four thousand, four hundred fifty-two".