42864897 has 4 divisors (see below), whose sum is σ = 57153200. Its totient is φ = 28576596.

The previous prime is 42864869. The next prime is 42864911. The reversal of 42864897 is 79846824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 42864897 - 2¹² = 42860801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42866897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7144147 + ... + 7144152.

It is an arithmetic number, because the mean of its divisors is an integer number (14288300).

Almost surely, 2^42864897 is an apocalyptic number.

It is an amenable number.

42864897 is a deficient number, since it is larger than the sum of its proper divisors (14288303).

42864897 is a wasteful number, since it uses less digits than its factorization.

42864897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14288302.

The product of its digits is 774144, while the sum is 48.

The square root of 42864897 is about 6547.1289127372. The cubic root of 42864897 is about 349.9725066839.

The spelling of 42864897 in words is "forty-two million, eight hundred sixty-four thousand, eight hundred ninety-seven".