98665625 has 12 divisors (see below), whose sum is σ = 123328044. Its totient is φ = 78930000.

The previous prime is 98665621. The next prime is 98665661. The reversal of 98665625 is 52656689.

It can be written as a sum of positive squares in 6 ways, for example, as 83704201 + 14961424 = 9149^2 + 3868^2 .

It is not a de Polignac number, because 98665625 - 2² = 98665621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 98665625.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98665621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12662 + ... + 18911.

It is an arithmetic number, because the mean of its divisors is an integer number (10277337).

Almost surely, 2^98665625 is an apocalyptic number.

It is an amenable number.

98665625 is a deficient number, since it is larger than the sum of its proper divisors (24662419).

98665625 is an frugal number, since it uses more digits than its factorization.

98665625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31598 (or 31578 counting only the distinct ones).

The product of its digits is 777600, while the sum is 47.

The square root of 98665625 is about 9933.0571829624. The cubic root of 98665625 is about 462.0850917398.

The spelling of 98665625 in words is "ninety-eight million, six hundred sixty-five thousand, six hundred twenty-five".