42709799 has 16 divisors (see below), whose sum is σ = 47558016. Its totient is φ = 38032800.

The previous prime is 42709783. The next prime is 42709811. The reversal of 42709799 is 99790724.

It is a cyclic number.

It is not a de Polignac number, because 42709799 - 2⁴ = 42709783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42709759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154049 + ... + 154325.

It is an arithmetic number, because the mean of its divisors is an integer number (2972376).

Almost surely, 2^42709799 is an apocalyptic number.

42709799 is a deficient number, since it is larger than the sum of its proper divisors (4848217).

42709799 is a wasteful number, since it uses less digits than its factorization.

42709799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526.

The product of its (nonzero) digits is 285768, while the sum is 47.

The square root of 42709799 is about 6535.2734449294. The cubic root of 42709799 is about 349.5498948757.

The spelling of 42709799 in words is "forty-two million, seven hundred nine thousand, seven hundred ninety-nine".