42610705 has 4 divisors (see below), whose sum is σ = 51132852. Its totient is φ = 34088560.

The previous prime is 42610681. The next prime is 42610723. The reversal of 42610705 is 50701624.

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 28344976 + 14265729 = 5324^2 + 3777^2 .

It is not a de Polignac number, because 42610705 - 2⁷ = 42610577 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42610705.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4261066 + ... + 4261075.

It is an arithmetic number, because the mean of its divisors is an integer number (12783213).

Almost surely, 2^42610705 is an apocalyptic number.

It is an amenable number.

42610705 is a deficient number, since it is larger than the sum of its proper divisors (8522147).

42610705 is an equidigital number, since it uses as much as digits as its factorization.

42610705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8522146.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 42610705 is about 6527.6875691166. The cubic root of 42610705 is about 349.2793471202.

The spelling of 42610705 in words is "forty-two million, six hundred ten thousand, seven hundred five".