215004897 has 12 divisors (see below), whose sum is σ = 324065664. Its totient is φ = 137104440.

The previous prime is 215004883. The next prime is 215004913. The reversal of 215004897 is 798400512.

215004897 is a `hidden beast` number, since 21 + 500 + 48 + 97 = 666.

215004897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 215004897 - 2⁶ = 215004833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (215004857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 519129 + ... + 519542.

It is an arithmetic number, because the mean of its divisors is an integer number (27005472).

Almost surely, 2^215004897 is an apocalyptic number.

It is an amenable number.

215004897 is a deficient number, since it is larger than the sum of its proper divisors (109060767).

215004897 is a wasteful number, since it uses less digits than its factorization.

215004897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038700 (or 1038697 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 215004897 is about 14663.0452839784. The cubic root of 215004897 is about 599.0771897631.

The spelling of 215004897 in words is "two hundred fifteen million, four thousand, eight hundred ninety-seven".