202099897 has 2 divisors, whose sum is σ = 202099898. Its totient is φ = 202099896.

The previous prime is 202099879. The next prime is 202099907. The reversal of 202099897 is 798990202.

202099897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (202099879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184660921 + 17438976 = 13589^2 + 4176^2 .

It is a cyclic number.

It is not a de Polignac number, because 202099897 - 2⁷ = 202099769 is a prime.

It is not a weakly prime, because it can be changed into another prime (202099817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101049948 + 101049949.

It is an arithmetic number, because the mean of its divisors is an integer number (101049949).

Almost surely, 2^202099897 is an apocalyptic number.

It is an amenable number.

202099897 is a deficient number, since it is larger than the sum of its proper divisors (1).

202099897 is an equidigital number, since it uses as much as digits as its factorization.

202099897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 202099897 is about 14216.1843333575. The cubic root of 202099897 is about 586.8431380200.

The spelling of 202099897 in words is "two hundred two million, ninety-nine thousand, eight hundred ninety-seven".