63304091 has 2 divisors, whose sum is σ = 63304092. Its totient is φ = 63304090.

The previous prime is 63304057. The next prime is 63304093. The reversal of 63304091 is 19040336.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63304091 is a prime.

Together with 63304093, it forms a pair of twin primes.

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 63304091.

It is not a weakly prime, because it can be changed into another prime (63304093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31652045 + 31652046.

It is an arithmetic number, because the mean of its divisors is an integer number (31652046).

Almost surely, 2^63304091 is an apocalyptic number.

63304091 is a deficient number, since it is larger than the sum of its proper divisors (1).

63304091 is an equidigital number, since it uses as much as digits as its factorization.

63304091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 63304091 is about 7956.3868055795. The cubic root of 63304091 is about 398.5449027317.

The spelling of 63304091 in words is "sixty-three million, three hundred four thousand, ninety-one".