42706791 has 16 divisors (see below), whose sum is σ = 66021120. Its totient is φ = 27232920.

The previous prime is 42706759. The next prime is 42706799. The reversal of 42706791 is 19760724.

It is a happy number.

It is not a de Polignac number, because 42706791 - 2⁵ = 42706759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42706799) 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, 33765 + ... + 35006.

It is an arithmetic number, because the mean of its divisors is an integer number (4126320).

Almost surely, 2^42706791 is an apocalyptic number.

42706791 is a deficient number, since it is larger than the sum of its proper divisors (23314329).

42706791 is a wasteful number, since it uses less digits than its factorization.

42706791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68803 (or 68797 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 42706791 is about 6535.0433051358. The cubic root of 42706791 is about 349.5416885562.

The spelling of 42706791 in words is "forty-two million, seven hundred six thousand, seven hundred ninety-one".