42609707 has 4 divisors (see below), whose sum is σ = 48696816. Its totient is φ = 36522600.

The previous prime is 42609691. The next prime is 42609709. The reversal of 42609707 is 70790624.

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

It is a cyclic number.

It is not a de Polignac number, because 42609707 - 2⁴ = 42609691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42609709) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3043544 + ... + 3043557.

It is an arithmetic number, because the mean of its divisors is an integer number (12174204).

Almost surely, 2^42609707 is an apocalyptic number.

42609707 is a deficient number, since it is larger than the sum of its proper divisors (6087109).

42609707 is an equidigital number, since it uses as much as digits as its factorization.

42609707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6087108.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 42609707 is about 6527.6111250595. The cubic root of 42609707 is about 349.2766202349.

The spelling of 42609707 in words is "forty-two million, six hundred nine thousand, seven hundred seven".