42786885 has 16 divisors (see below), whose sum is σ = 69067584. Its totient is φ = 22616832.

The previous prime is 42786883. The next prime is 42786929. The reversal of 42786885 is 58868724.

It is not a de Polignac number, because 42786885 - 2¹ = 42786883 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42786883) 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, 10927 + ... + 14316.

It is an arithmetic number, because the mean of its divisors is an integer number (4316724).

Almost surely, 2^42786885 is an apocalyptic number.

It is an amenable number.

42786885 is a deficient number, since it is larger than the sum of its proper divisors (26280699).

42786885 is a wasteful number, since it uses less digits than its factorization.

42786885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25364.

The product of its digits is 860160, while the sum is 48.

The square root of 42786885 is about 6541.1684735986. The cubic root of 42786885 is about 349.7600668503.

The spelling of 42786885 in words is "forty-two million, seven hundred eighty-six thousand, eight hundred eighty-five".