42087795 has 16 divisors (see below), whose sum is σ = 68774400. Its totient is φ = 21968864.

The previous prime is 42087779. The next prime is 42087797. The reversal of 42087795 is 59778024.

It is a cyclic number.

It is not a de Polignac number, because 42087795 - 2⁴ = 42087779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42087797) 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, 29145 + ... + 30554.

It is an arithmetic number, because the mean of its divisors is an integer number (4298400).

Almost surely, 2^42087795 is an apocalyptic number.

42087795 is a deficient number, since it is larger than the sum of its proper divisors (26686605).

42087795 is a wasteful number, since it uses less digits than its factorization.

42087795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59754.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 42087795 is about 6487.5106936328. The cubic root of 42087795 is about 347.8447004905.

The spelling of 42087795 in words is "forty-two million, eighty-seven thousand, seven hundred ninety-five".