210764097 has 12 divisors (see below), whose sum is σ = 307132644. Its totient is φ = 139265280.

The previous prime is 210764069. The next prime is 210764119. The reversal of 210764097 is 790467012.

It is a happy number.

210764097 is a `hidden beast` number, since 2 + 1 + 0 + 7 + 640 + 9 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 75064896 + 135699201 = 8664^2 + 11649^2 .

It is not a de Polignac number, because 210764097 - 2⁶ = 210764033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210764297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102604 + ... + 104637.

It is an arithmetic number, because the mean of its divisors is an integer number (25594387).

Almost surely, 2^210764097 is an apocalyptic number.

It is an amenable number.

210764097 is a deficient number, since it is larger than the sum of its proper divisors (96368547).

210764097 is a wasteful number, since it uses less digits than its factorization.

210764097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207360 (or 207357 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 210764097 is about 14517.7166593098. The cubic root of 210764097 is about 595.1122326713.

The spelling of 210764097 in words is "two hundred ten million, seven hundred sixty-four thousand, ninety-seven".