42107799 has 4 divisors (see below), whose sum is σ = 56143736. Its totient is φ = 28071864.

The previous prime is 42107783. The next prime is 42107801. The reversal of 42107799 is 99770124.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42107799 - 2⁴ = 42107783 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 (42107719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7017964 + ... + 7017969.

It is an arithmetic number, because the mean of its divisors is an integer number (14035934).

Almost surely, 2^42107799 is an apocalyptic number.

42107799 is a deficient number, since it is larger than the sum of its proper divisors (14035937).

42107799 is a wasteful number, since it uses less digits than its factorization.

42107799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14035936.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 42107799 is about 6489.0522420458. The cubic root of 42107799 is about 347.8998010510.

The spelling of 42107799 in words is "forty-two million, one hundred seven thousand, seven hundred ninety-nine".