42647359 has 4 divisors (see below), whose sum is σ = 44501616. Its totient is φ = 40793104.

The previous prime is 42647333. The next prime is 42647369. The reversal of 42647359 is 95374624.

It is a happy number.

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 42647359 - 2⁵ = 42647327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42647329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 927094 + ... + 927139.

It is an arithmetic number, because the mean of its divisors is an integer number (11125404).

Almost surely, 2^42647359 is an apocalyptic number.

42647359 is a deficient number, since it is larger than the sum of its proper divisors (1854257).

42647359 is a wasteful number, since it uses less digits than its factorization.

42647359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854256.

The product of its digits is 181440, while the sum is 40.

The square root of 42647359 is about 6530.4945448258. The cubic root of 42647359 is about 349.3794691906.

The spelling of 42647359 in words is "forty-two million, six hundred forty-seven thousand, three hundred fifty-nine".