97129829 has 2 divisors, whose sum is σ = 97129830. Its totient is φ = 97129828.

The previous prime is 97129817. The next prime is 97129889. The reversal of 97129829 is 92892179.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96079204 + 1050625 = 9802^2 + 1025^2 .

It is a cyclic number.

It is not a de Polignac number, because 97129829 - 2²⁰ = 96081253 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97129889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48564914 + 48564915.

It is an arithmetic number, because the mean of its divisors is an integer number (48564915).

Almost surely, 2^97129829 is an apocalyptic number.

It is an amenable number.

97129829 is a deficient number, since it is larger than the sum of its proper divisors (1).

97129829 is an equidigital number, since it uses as much as digits as its factorization.

97129829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 47.

The square root of 97129829 is about 9855.4466666915. The cubic root of 97129829 is about 459.6749893861.

The spelling of 97129829 in words is "ninety-seven million, one hundred twenty-nine thousand, eight hundred twenty-nine".