42873087 has 4 divisors (see below), whose sum is σ = 57164120. Its totient is φ = 28582056.

The previous prime is 42873073. The next prime is 42873091. The reversal of 42873087 is 78037824.

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

It is not a de Polignac number, because 42873087 - 2⁶ = 42873023 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 (42873007) 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, 7145512 + ... + 7145517.

It is an arithmetic number, because the mean of its divisors is an integer number (14291030).

Almost surely, 2^42873087 is an apocalyptic number.

42873087 is a deficient number, since it is larger than the sum of its proper divisors (14291033).

42873087 is a wasteful number, since it uses less digits than its factorization.

42873087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14291032.

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 42873087 is about 6547.7543478661. The cubic root of 42873087 is about 349.9947944804.

The spelling of 42873087 in words is "forty-two million, eight hundred seventy-three thousand, eighty-seven".