97829999 has 4 divisors (see below), whose sum is σ = 98081880. Its totient is φ = 97578120.

The previous prime is 97829989. The next prime is 97830037. The reversal of 97829999 is 99992879.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97829999 is a prime.

It is a Duffinian number.

97829999 is a modest number, since divided by 9999 gives 9782 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97829929) 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, 125357 + ... + 126134.

It is an arithmetic number, because the mean of its divisors is an integer number (24520470).

Almost surely, 2^97829999 is an apocalyptic number.

97829999 is a deficient number, since it is larger than the sum of its proper divisors (251881).

97829999 is a wasteful number, since it uses less digits than its factorization.

97829999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251880.

The product of its digits is 6613488, while the sum is 62.

The square root of 97829999 is about 9890.9048625492. The cubic root of 97829999 is about 460.7768834829.

The spelling of 97829999 in words is "ninety-seven million, eight hundred twenty-nine thousand, nine hundred ninety-nine".