42072087 has 8 divisors (see below), whose sum is σ = 56473200. Its totient is φ = 27859520.

The previous prime is 42072077. The next prime is 42072157. The reversal of 42072087 is 78027024.

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

It is a cyclic number.

It is not a de Polignac number, because 42072087 - 2⁷ = 42071959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42072067) 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, 46614 + ... + 47507.

It is an arithmetic number, because the mean of its divisors is an integer number (7059150).

Almost surely, 2^42072087 is an apocalyptic number.

42072087 is a deficient number, since it is larger than the sum of its proper divisors (14401113).

42072087 is a wasteful number, since it uses less digits than its factorization.

42072087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94273.

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 42072087 is about 6486.2999468110. The cubic root of 42072087 is about 347.8014209250.

The spelling of 42072087 in words is "forty-two million, seventy-two thousand, eighty-seven".