42810697 has 4 divisors (see below), whose sum is σ = 43618500. Its totient is φ = 42002896.

The previous prime is 42810689. The next prime is 42810701. The reversal of 42810697 is 79601824.

42810697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 37222201 + 5588496 = 6101^2 + 2364^2 .

It is a cyclic number.

It is not a de Polignac number, because 42810697 - 2³ = 42810689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42810997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403822 + ... + 403927.

It is an arithmetic number, because the mean of its divisors is an integer number (10904625).

Almost surely, 2^42810697 is an apocalyptic number.

It is an amenable number.

42810697 is a deficient number, since it is larger than the sum of its proper divisors (807803).

42810697 is an equidigital number, since it uses as much as digits as its factorization.

42810697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807802.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 42810697 is about 6542.9883845228. The cubic root of 42810697 is about 349.8249383032.

The spelling of 42810697 in words is "forty-two million, eight hundred ten thousand, six hundred ninety-seven".