42703817 has 4 divisors (see below), whose sum is σ = 45988740. Its totient is φ = 39418896.

The previous prime is 42703789. The next prime is 42703819. The reversal of 42703817 is 71830724.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13424896 + 29278921 = 3664^2 + 5411^2 .

It is a cyclic number.

It is not a de Polignac number, because 42703817 - 2¹² = 42699721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42703819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1642442 + ... + 1642467.

It is an arithmetic number, because the mean of its divisors is an integer number (11497185).

Almost surely, 2^42703817 is an apocalyptic number.

It is an amenable number.

42703817 is a deficient number, since it is larger than the sum of its proper divisors (3284923).

42703817 is a wasteful number, since it uses less digits than its factorization.

42703817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3284922.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 42703817 is about 6534.8157586882. The cubic root of 42703817 is about 349.5335746155.

The spelling of 42703817 in words is "forty-two million, seven hundred three thousand, eight hundred seventeen".