42959867 has 4 divisors (see below), whose sum is σ = 45486936. Its totient is φ = 40432800.

The previous prime is 42959857. The next prime is 42959869. The reversal of 42959867 is 76895924.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42959867 - 2⁶ = 42959803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42959869) 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, 1263509 + ... + 1263542.

It is an arithmetic number, because the mean of its divisors is an integer number (11371734).

Almost surely, 2^42959867 is an apocalyptic number.

42959867 is a deficient number, since it is larger than the sum of its proper divisors (2527069).

42959867 is a wasteful number, since it uses less digits than its factorization.

42959867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2527068.

The product of its digits is 1088640, while the sum is 50.

The square root of 42959867 is about 6554.3776973867. The cubic root of 42959867 is about 350.2307784112.

The spelling of 42959867 in words is "forty-two million, nine hundred fifty-nine thousand, eight hundred sixty-seven".