42704779 has 6 divisors (see below), whose sum is σ = 46242636. Its totient is φ = 39419640.

The previous prime is 42704777. The next prime is 42704797. The reversal of 42704779 is 97740724.

It is not a de Polignac number, because 42704779 - 2¹ = 42704777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42704777) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 126177 + ... + 126514.

It is an arithmetic number, because the mean of its divisors is an integer number (7707106).

Almost surely, 2^42704779 is an apocalyptic number.

42704779 is a deficient number, since it is larger than the sum of its proper divisors (3537857).

42704779 is a wasteful number, since it uses less digits than its factorization.

42704779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252717 (or 252704 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 40.

The square root of 42704779 is about 6534.8893640214. The cubic root of 42704779 is about 349.5361992737.

The spelling of 42704779 in words is "forty-two million, seven hundred four thousand, seven hundred seventy-nine".