42689759 has 8 divisors (see below), whose sum is σ = 50362368. Its totient is φ = 35410680.

The previous prime is 42689719. The next prime is 42689761. The reversal of 42689759 is 95798624.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42689759 - 2⁸ = 42689503 is a prime.

It is a super-3 number, since 3×42689759³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42689719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98147 + ... + 98580.

It is an arithmetic number, because the mean of its divisors is an integer number (6295296).

Almost surely, 2^42689759 is an apocalyptic number.

42689759 is a deficient number, since it is larger than the sum of its proper divisors (7672609).

42689759 is a wasteful number, since it uses less digits than its factorization.

42689759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196765.

The product of its digits is 1088640, while the sum is 50.

The square root of 42689759 is about 6533.7400468644. The cubic root of 42689759 is about 349.4952151851.

The spelling of 42689759 in words is "forty-two million, six hundred eighty-nine thousand, seven hundred fifty-nine".