42694027 has 2 divisors, whose sum is σ = 42694028. Its totient is φ = 42694026.

The previous prime is 42693947. The next prime is 42694033. The reversal of 42694027 is 72049624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42694027 - 2¹⁹ = 42169739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42693983 and 42694001.

It is not a weakly prime, because it can be changed into another prime (42694727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21347013 + 21347014.

It is an arithmetic number, because the mean of its divisors is an integer number (21347014).

Almost surely, 2^42694027 is an apocalyptic number.

42694027 is a deficient number, since it is larger than the sum of its proper divisors (1).

42694027 is an equidigital number, since it uses as much as digits as its factorization.

42694027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 42694027 is about 6534.0666510222. The cubic root of 42694027 is about 349.5068619743.

The spelling of 42694027 in words is "forty-two million, six hundred ninety-four thousand, twenty-seven".