571985097 has 16 divisors (see below), whose sum is σ = 792042240. Its totient is φ = 366890832.

The previous prime is 571985081. The next prime is 571985143. The reversal of 571985097 is 790589175.

It is not a de Polignac number, because 571985097 - 2⁴ = 571985081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (571985027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24447 + ... + 41732.

It is an arithmetic number, because the mean of its divisors is an integer number (49502640).

Almost surely, 2^571985097 is an apocalyptic number.

It is an amenable number.

571985097 is a deficient number, since it is larger than the sum of its proper divisors (220057143).

571985097 is a wasteful number, since it uses less digits than its factorization.

571985097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66292.

The product of its (nonzero) digits is 793800, while the sum is 51.

The square root of 571985097 is about 23916.2099213065. The cubic root of 571985097 is about 830.0958407739.

The spelling of 571985097 in words is "five hundred seventy-one million, nine hundred eighty-five thousand, ninety-seven".