42694807 has 2 divisors, whose sum is σ = 42694808. Its totient is φ = 42694806.

The previous prime is 42694787. The next prime is 42694889. The reversal of 42694807 is 70849624.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42694807 - 2⁷ = 42694679 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42694807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42694507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21347403 + 21347404.

It is an arithmetic number, because the mean of its divisors is an integer number (21347404).

Almost surely, 2^42694807 is an apocalyptic number.

42694807 is a deficient number, since it is larger than the sum of its proper divisors (1).

42694807 is an equidigital number, since it uses as much as digits as its factorization.

42694807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 42694807 is about 6534.1263379277. The cubic root of 42694807 is about 349.5089904039.

The spelling of 42694807 in words is "forty-two million, six hundred ninety-four thousand, eight hundred seven".