42665607 has 6 divisors (see below), whose sum is σ = 61628112. Its totient is φ = 28443732.

The previous prime is 42665603. The next prime is 42665611. The reversal of 42665607 is 70656624.

42665607 is a `hidden beast` number, since 42 + 6 + 6 + 5 + 607 = 666.

It is an interprime number because it is at equal distance from previous prime (42665603) and next prime (42665611).

It is not a de Polignac number, because 42665607 - 2² = 42665603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42665603) 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 5 ways as a sum of consecutive naturals, for example, 2370303 + ... + 2370320.

It is an arithmetic number, because the mean of its divisors is an integer number (10271352).

Almost surely, 2^42665607 is an apocalyptic number.

42665607 is a deficient number, since it is larger than the sum of its proper divisors (18962505).

42665607 is a wasteful number, since it uses less digits than its factorization.

42665607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4740629 (or 4740626 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 42665607 is about 6531.8915330860. The cubic root of 42665607 is about 349.4292930453.

The spelling of 42665607 in words is "forty-two million, six hundred sixty-five thousand, six hundred seven".