42786825 has 12 divisors (see below), whose sum is σ = 70741008. Its totient is φ = 22819600.

The previous prime is 42786817. The next prime is 42786853. The reversal of 42786825 is 52868724.

It is a happy number.

It is not a de Polignac number, because 42786825 - 2³ = 42786817 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 285171 + ... + 285320.

It is an arithmetic number, because the mean of its divisors is an integer number (5895084).

Almost surely, 2^42786825 is an apocalyptic number.

It is an amenable number.

42786825 is a deficient number, since it is larger than the sum of its proper divisors (27954183).

42786825 is a wasteful number, since it uses less digits than its factorization.

42786825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570504 (or 570499 counting only the distinct ones).

The product of its digits is 215040, while the sum is 42.

The square root of 42786825 is about 6541.1638872604. The cubic root of 42786825 is about 349.7599033609.

The spelling of 42786825 in words is "forty-two million, seven hundred eighty-six thousand, eight hundred twenty-five".