63291043 has 2 divisors, whose sum is σ = 63291044. Its totient is φ = 63291042.

The previous prime is 63291031. The next prime is 63291061. The reversal of 63291043 is 34019236.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63291043 - 2⁹ = 63290531 is a prime.

It is a super-2 number, since 2×63291043² = 8011512248055698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (63291023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31645521 + 31645522.

It is an arithmetic number, because the mean of its divisors is an integer number (31645522).

Almost surely, 2^63291043 is an apocalyptic number.

63291043 is a deficient number, since it is larger than the sum of its proper divisors (1).

63291043 is an equidigital number, since it uses as much as digits as its factorization.

63291043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 63291043 is about 7955.5667931330. The cubic root of 63291043 is about 398.5175186605.

The spelling of 63291043 in words is "sixty-three million, two hundred ninety-one thousand, forty-three".