99319625 has 8 divisors (see below), whose sum is σ = 123951048. Its totient is φ = 79455600.

The previous prime is 99319621. The next prime is 99319687. The reversal of 99319625 is 52691399.

It can be written as a sum of positive squares in 4 ways, for example, as 2238016 + 97081609 = 1496^2 + 9853^2 .

It is not a de Polignac number, because 99319625 - 2² = 99319621 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99319621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397154 + ... + 397403.

It is an arithmetic number, because the mean of its divisors is an integer number (15493881).

Almost surely, 2^99319625 is an apocalyptic number.

It is an amenable number.

99319625 is a deficient number, since it is larger than the sum of its proper divisors (24631423).

99319625 is an equidigital number, since it uses as much as digits as its factorization.

99319625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794572 (or 794562 counting only the distinct ones).

The product of its digits is 131220, while the sum is 44.

The square root of 99319625 is about 9965.9231885461. The cubic root of 99319625 is about 463.1038132525.

The spelling of 99319625 in words is "ninety-nine million, three hundred nineteen thousand, six hundred twenty-five".