42963887 has 2 divisors, whose sum is σ = 42963888. Its totient is φ = 42963886.

The previous prime is 42963863. The next prime is 42963889. The reversal of 42963887 is 78836924.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42963887 - 2¹⁰ = 42962863 is a prime.

It is a super-2 number, since 2×42963887² = 3691791172297538, which contains 22 as substring.

Together with 42963889, it forms a pair of twin primes.

It is a Chen prime.

It is a nialpdrome in base 9.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42963889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21481943 + 21481944.

It is an arithmetic number, because the mean of its divisors is an integer number (21481944).

Almost surely, 2^42963887 is an apocalyptic number.

42963887 is a deficient number, since it is larger than the sum of its proper divisors (1).

42963887 is an equidigital number, since it uses as much as digits as its factorization.

42963887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 47.

The square root of 42963887 is about 6554.6843554820. The cubic root of 42963887 is about 350.2417024349.

The spelling of 42963887 in words is "forty-two million, nine hundred sixty-three thousand, eight hundred eighty-seven".