989275725 has 18 divisors (see below), whose sum is σ = 1771903146. Its totient is φ = 527613600.

The previous prime is 989275711. The next prime is 989275739. The reversal of 989275725 is 527572989.

989275725 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (989275711) and next prime (989275739).

It can be written as a sum of positive squares in 3 ways, for example, as 25918281 + 963357444 = 5091^2 + 31038^2 .

It is not a de Polignac number, because 989275725 - 2⁹ = 989275213 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2198166 + ... + 2198615.

Almost surely, 2^989275725 is an apocalyptic number.

It is an amenable number.

989275725 is a deficient number, since it is larger than the sum of its proper divisors (782627421).

989275725 is a wasteful number, since it uses less digits than its factorization.

989275725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4396797 (or 4396789 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 54.

The square root of 989275725 is about 31452.7538539950. The cubic root of 989275725 is about 996.4123860851.

The spelling of 989275725 in words is "nine hundred eighty-nine million, two hundred seventy-five thousand, seven hundred twenty-five".