97829929 has 2 divisors, whose sum is σ = 97829930. Its totient is φ = 97829928.

The previous prime is 97829911. The next prime is 97829981. The reversal of 97829929 is 92992879.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95648400 + 2181529 = 9780^2 + 1477^2 .

It is a cyclic number.

It is not a de Polignac number, because 97829929 - 2⁷ = 97829801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97829929.

It is not a weakly prime, because it can be changed into another prime (97829989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48914964 + 48914965.

It is an arithmetic number, because the mean of its divisors is an integer number (48914965).

Almost surely, 2^97829929 is an apocalyptic number.

It is an amenable number.

97829929 is a deficient number, since it is larger than the sum of its proper divisors (1).

97829929 is an equidigital number, since it uses as much as digits as its factorization.

97829929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1469664, while the sum is 55.

The square root of 97829929 is about 9890.9013239441. The cubic root of 97829929 is about 460.7767735835.

The spelling of 97829929 in words is "ninety-seven million, eight hundred twenty-nine thousand, nine hundred twenty-nine".