97129099 has 4 divisors (see below), whose sum is σ = 97209360. Its totient is φ = 97048840.

The previous prime is 97129093. The next prime is 97129127. The reversal of 97129099 is 99092179.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99092179 = 37 ⋅2678167.

It is a cyclic number.

It is not a de Polignac number, because 97129099 - 2⁹ = 97128587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97129093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38287 + ... + 40744.

It is an arithmetic number, because the mean of its divisors is an integer number (24302340).

Almost surely, 2^97129099 is an apocalyptic number.

97129099 is a deficient number, since it is larger than the sum of its proper divisors (80261).

97129099 is a wasteful number, since it uses less digits than its factorization.

97129099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80260.

The product of its (nonzero) digits is 91854, while the sum is 46.

The square root of 97129099 is about 9855.4096312634. The cubic root of 97129099 is about 459.6738377880.

The spelling of 97129099 in words is "ninety-seven million, one hundred twenty-nine thousand, ninety-nine".