42646367 has 2 divisors, whose sum is σ = 42646368. Its totient is φ = 42646366.

The previous prime is 42646361. The next prime is 42646379. The reversal of 42646367 is 76364624.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42646367 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 42646367.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42646361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21323183 + 21323184.

It is an arithmetic number, because the mean of its divisors is an integer number (21323184).

Almost surely, 2^42646367 is an apocalyptic number.

42646367 is a deficient number, since it is larger than the sum of its proper divisors (1).

42646367 is an equidigital number, since it uses as much as digits as its factorization.

42646367 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 38.

The square root of 42646367 is about 6530.4185930153. The cubic root of 42646367 is about 349.3767602528.

The spelling of 42646367 in words is "forty-two million, six hundred forty-six thousand, three hundred sixty-seven".