99817029 has 20 divisors (see below), whose sum is σ = 160581036. Its totient is φ = 61425216.

The previous prime is 99817019. The next prime is 99817057. The reversal of 99817029 is 92071899.

It can be written as a sum of positive squares in 2 ways, for example, as 5688225 + 94128804 = 2385^2 + 9702^2 .

It is not a de Polignac number, because 99817029 - 2¹⁶ = 99751493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99817019) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 46344 + ... + 48449.

Almost surely, 2^99817029 is an apocalyptic number.

It is an amenable number.

99817029 is a deficient number, since it is larger than the sum of its proper divisors (60764007).

99817029 is a wasteful number, since it uses less digits than its factorization.

99817029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94818 (or 94809 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The square root of 99817029 is about 9990.8472613688. The cubic root of 99817029 is about 463.8756184766.

The spelling of 99817029 in words is "ninety-nine million, eight hundred seventeen thousand, twenty-nine".