42070717 has 8 divisors (see below), whose sum is σ = 46075680. Its totient is φ = 38175600.

The previous prime is 42070673. The next prime is 42070723. The reversal of 42070717 is 71707024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42070717 - 2¹¹ = 42068669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42070747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26659 + ... + 28192.

It is an arithmetic number, because the mean of its divisors is an integer number (5759460).

Almost surely, 2^42070717 is an apocalyptic number.

It is an amenable number.

42070717 is a deficient number, since it is larger than the sum of its proper divisors (4004963).

42070717 is a wasteful number, since it uses less digits than its factorization.

42070717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54923.

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 42070717 is about 6486.1943387475. The cubic root of 42070717 is about 347.7976457132.

It can be divided in two parts, 4 and 2070717, that added together give a square (2070721 = 1439²).

The spelling of 42070717 in words is "forty-two million, seventy thousand, seven hundred seventeen".