83129299 has 6 divisors (see below), whose sum is σ = 91373660. Its totient is φ = 75571980.

The previous prime is 83129287. The next prime is 83129311. The reversal of 83129299 is 99292138.

It is an interprime number because it is at equal distance from previous prime (83129287) and next prime (83129311).

It is not a de Polignac number, because 83129299 - 2¹¹ = 83127251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83129279) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 343389 + ... + 343630.

Almost surely, 2^83129299 is an apocalyptic number.

83129299 is a deficient number, since it is larger than the sum of its proper divisors (8244361).

83129299 is a wasteful number, since it uses less digits than its factorization.

83129299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687041 (or 687030 counting only the distinct ones).

The product of its digits is 69984, while the sum is 43.

The square root of 83129299 is about 9117.5270221700. The cubic root of 83129299 is about 436.4334602190.

The spelling of 83129299 in words is "eighty-three million, one hundred twenty-nine thousand, two hundred ninety-nine".