42735087 has 16 divisors (see below), whose sum is σ = 63523680. Its totient is φ = 28394496.

The previous prime is 42735083. The next prime is 42735089. The reversal of 42735087 is 78053724.

It is not a de Polignac number, because 42735087 - 2² = 42735083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42735083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6063 + ... + 11055.

It is an arithmetic number, because the mean of its divisors is an integer number (3970230).

Almost surely, 2^42735087 is an apocalyptic number.

42735087 is a deficient number, since it is larger than the sum of its proper divisors (20788593).

42735087 is a wasteful number, since it uses less digits than its factorization.

42735087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5319 (or 5313 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 42735087 is about 6537.2078902235. The cubic root of 42735087 is about 349.6188694745.

The spelling of 42735087 in words is "forty-two million, seven hundred thirty-five thousand, eighty-seven".