999763325 has 24 divisors (see below), whose sum is σ = 1353856800. Its totient is φ = 726321600.

The previous prime is 999763321. The next prime is 999763339. The reversal of 999763325 is 523367999.

It is not a de Polignac number, because 999763325 - 2² = 999763321 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999763321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 424802 + ... + 427148.

It is an arithmetic number, because the mean of its divisors is an integer number (56410700).

Almost surely, 2^999763325 is an apocalyptic number.

999763325 is the 25817-th pentagonal number.

It is an amenable number.

999763325 is a deficient number, since it is larger than the sum of its proper divisors (354093475).

999763325 is a wasteful number, since it uses less digits than its factorization.

999763325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3917 (or 3912 counting only the distinct ones).

The product of its digits is 2755620, while the sum is 53.

The square root of 999763325 is about 31619.0342199125. The cubic root of 999763325 is about 999.9211021086.

It can be divided in two parts, 99976 and 3325, that added together give a palindrome (103301).

The spelling of 999763325 in words is "nine hundred ninety-nine million, seven hundred sixty-three thousand, three hundred twenty-five".