42646063 has 2 divisors, whose sum is σ = 42646064. Its totient is φ = 42646062.

The previous prime is 42646033. The next prime is 42646187. The reversal of 42646063 is 36064624.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42646063 - 2⁵ = 42646031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42646003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21323031 + 21323032.

It is an arithmetic number, because the mean of its divisors is an integer number (21323032).

Almost surely, 2^42646063 is an apocalyptic number.

42646063 is a deficient number, since it is larger than the sum of its proper divisors (1).

42646063 is an equidigital number, since it uses as much as digits as its factorization.

42646063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 42646063 is about 6530.3953172836. The cubic root of 42646063 is about 349.3759300861.

The spelling of 42646063 in words is "forty-two million, six hundred forty-six thousand, sixty-three".