989220425 has 12 divisors (see below), whose sum is σ = 1229492736. Its totient is φ = 789531600.

The previous prime is 989220371. The next prime is 989220439. The reversal of 989220425 is 524022989.

It is not a de Polignac number, because 989220425 - 2¹⁸ = 988958281 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35129 + ... + 56678.

It is an arithmetic number, because the mean of its divisors is an integer number (102457728).

Almost surely, 2^989220425 is an apocalyptic number.

It is an amenable number.

989220425 is a deficient number, since it is larger than the sum of its proper divisors (240272311).

989220425 is a wasteful number, since it uses less digits than its factorization.

989220425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92248 (or 92243 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 989220425 is about 31451.8747453947. The cubic root of 989220425 is about 996.3938194272.

The spelling of 989220425 in words is "nine hundred eighty-nine million, two hundred twenty thousand, four hundred twenty-five".