42861263 has 2 divisors, whose sum is σ = 42861264. Its totient is φ = 42861262.

The previous prime is 42861257. The next prime is 42861271. The reversal of 42861263 is 36216824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42861263 - 2¹⁰ = 42860239 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42861463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21430631 + 21430632.

It is an arithmetic number, because the mean of its divisors is an integer number (21430632).

Almost surely, 2^42861263 is an apocalyptic number.

42861263 is a deficient number, since it is larger than the sum of its proper divisors (1).

42861263 is an equidigital number, since it uses as much as digits as its factorization.

42861263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 32.

The square root of 42861263 is about 6546.8513806257. The cubic root of 42861263 is about 349.9626164154.

The spelling of 42861263 in words is "forty-two million, eight hundred sixty-one thousand, two hundred sixty-three".