99039625 has 8 divisors (see below), whose sum is σ = 123601608. Its totient is φ = 79231600.

The previous prime is 99039623. The next prime is 99039631. The reversal of 99039625 is 52693099.

99039625 is nontrivially palindromic in base 14.

It can be written as a sum of positive squares in 4 ways, for example, as 1108809 + 97930816 = 1053^2 + 9896^2 .

It is not a de Polignac number, because 99039625 - 2¹ = 99039623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99039623) 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, 396034 + ... + 396283.

It is an arithmetic number, because the mean of its divisors is an integer number (15450201).

Almost surely, 2^99039625 is an apocalyptic number.

It is an amenable number.

99039625 is a deficient number, since it is larger than the sum of its proper divisors (24561983).

99039625 is an equidigital number, since it uses as much as digits as its factorization.

99039625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792332 (or 792322 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 43.

The square root of 99039625 is about 9951.8654030287. The cubic root of 99039625 is about 462.6682124923.

The spelling of 99039625 in words is "ninety-nine million, thirty-nine thousand, six hundred twenty-five".