42606427 has 2 divisors, whose sum is σ = 42606428. Its totient is φ = 42606426.

The previous prime is 42606413. The next prime is 42606433. The reversal of 42606427 is 72460624.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42606427 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42606467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21303213 + 21303214.

It is an arithmetic number, because the mean of its divisors is an integer number (21303214).

Almost surely, 2^42606427 is an apocalyptic number.

42606427 is a deficient number, since it is larger than the sum of its proper divisors (1).

42606427 is an equidigital number, since it uses as much as digits as its factorization.

42606427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 42606427 is about 6527.3598797676. The cubic root of 42606427 is about 349.2676578271.

The spelling of 42606427 in words is "forty-two million, six hundred six thousand, four hundred twenty-seven".