42086715 has 16 divisors (see below), whose sum is σ = 73460736. Its totient is φ = 20405600.

The previous prime is 42086699. The next prime is 42086771. The reversal of 42086715 is 51768024.

It is not a de Polignac number, because 42086715 - 2⁴ = 42086699 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127371 + ... + 127700.

It is an arithmetic number, because the mean of its divisors is an integer number (4591296).

Almost surely, 2^42086715 is an apocalyptic number.

42086715 is a deficient number, since it is larger than the sum of its proper divisors (31374021).

42086715 is a wasteful number, since it uses less digits than its factorization.

42086715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255090.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 42086715 is about 6487.4274562418. The cubic root of 42086715 is about 347.8417251585.

The spelling of 42086715 in words is "forty-two million, eighty-six thousand, seven hundred fifteen".