855342897 has 8 divisors (see below), whose sum is σ = 1140903456. Its totient is φ = 570005472.

The previous prime is 855342857. The next prime is 855342899. The reversal of 855342897 is 798243558.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 855342897 - 2⁷ = 855342769 is a prime.

It is a super-2 number, since 2×855342897² = 1463222942896705218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (855342899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46623 + ... + 62324.

It is an arithmetic number, because the mean of its divisors is an integer number (142612932).

Almost surely, 2^855342897 is an apocalyptic number.

It is an amenable number.

855342897 is a deficient number, since it is larger than the sum of its proper divisors (285560559).

855342897 is a wasteful number, since it uses less digits than its factorization.

855342897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111567.

The product of its digits is 2419200, while the sum is 51.

The square root of 855342897 is about 29246.2458616486. The cubic root of 855342897 is about 949.2488603594.

The spelling of 855342897 in words is "eight hundred fifty-five million, three hundred forty-two thousand, eight hundred ninety-seven".