42826807 has 4 divisors (see below), whose sum is σ = 42966616. Its totient is φ = 42687000.

The previous prime is 42826801. The next prime is 42826811. The reversal of 42826807 is 70862824.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42826807 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 (42826801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69444 + ... + 70057.

It is an arithmetic number, because the mean of its divisors is an integer number (10741654).

Almost surely, 2^42826807 is an apocalyptic number.

42826807 is a deficient number, since it is larger than the sum of its proper divisors (139809).

42826807 is a wasteful number, since it uses less digits than its factorization.

42826807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139808.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 42826807 is about 6544.2193575705. The cubic root of 42826807 is about 349.8688134200.

The spelling of 42826807 in words is "forty-two million, eight hundred twenty-six thousand, eight hundred seven".