989782426 has 16 divisors (see below), whose sum is σ = 1505991240. Its totient is φ = 487828800.

The previous prime is 989782397. The next prime is 989782433. The reversal of 989782426 is 624287989.

It can be written as a sum of positive squares in 4 ways, for example, as 769230225 + 220552201 = 27735^2 + 14851^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35560 + ... + 56956.

Almost surely, 2^989782426 is an apocalyptic number.

989782426 is a deficient number, since it is larger than the sum of its proper divisors (516208814).

989782426 is a wasteful number, since it uses less digits than its factorization.

989782426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21729.

The product of its digits is 3483648, while the sum is 55.

The square root of 989782426 is about 31460.8077772965. The cubic root of 989782426 is about 996.5824758335.

The spelling of 989782426 in words is "nine hundred eighty-nine million, seven hundred eighty-two thousand, four hundred twenty-six".