659442067 has 4 divisors (see below), whose sum is σ = 659826520. Its totient is φ = 659057616.

The previous prime is 659442041. The next prime is 659442097. The reversal of 659442067 is 760244956.

It is a happy number.

659442067 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-659442067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (659442097) 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, 189642 + ... + 193087.

It is an arithmetic number, because the mean of its divisors is an integer number (164956630).

Almost surely, 2^659442067 is an apocalyptic number.

659442067 is a deficient number, since it is larger than the sum of its proper divisors (384453).

659442067 is a wasteful number, since it uses less digits than its factorization.

659442067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384452.

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 659442067 is about 25679.6041052038. The cubic root of 659442067 is about 870.4133619429.

The spelling of 659442067 in words is "six hundred fifty-nine million, four hundred forty-two thousand, sixty-seven".