42873079 has 4 divisors (see below), whose sum is σ = 43266520. Its totient is φ = 42479640.

The previous prime is 42873073. The next prime is 42873091. The reversal of 42873079 is 97037824.

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

It is a cyclic number.

It is not a de Polignac number, because 42873079 - 2⁹ = 42872567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42873073) 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, 196557 + ... + 196774.

It is an arithmetic number, because the mean of its divisors is an integer number (10816630).

Almost surely, 2^42873079 is an apocalyptic number.

42873079 is a deficient number, since it is larger than the sum of its proper divisors (393441).

42873079 is a wasteful number, since it uses less digits than its factorization.

42873079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393440.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 42873079 is about 6547.7537369696. The cubic root of 42873079 is about 349.9947727110.

The spelling of 42873079 in words is "forty-two million, eight hundred seventy-three thousand, seventy-nine".