42779635 has 8 divisors (see below), whose sum is σ = 52428096. Its totient is φ = 33495360.

The previous prime is 42779623. The next prime is 42779663. The reversal of 42779635 is 53697724.

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

It is a de Polignac number, because none of the positive numbers 2^k-42779635 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42779591 and 42779600.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90786 + ... + 91255.

It is an arithmetic number, because the mean of its divisors is an integer number (6553512).

Almost surely, 2^42779635 is an apocalyptic number.

42779635 is a deficient number, since it is larger than the sum of its proper divisors (9648461).

42779635 is a wasteful number, since it uses less digits than its factorization.

42779635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182093.

The product of its digits is 317520, while the sum is 43.

The square root of 42779635 is about 6540.6142677886. The cubic root of 42779635 is about 349.7403107676.

The spelling of 42779635 in words is "forty-two million, seven hundred seventy-nine thousand, six hundred thirty-five".