63295391 has 2 divisors, whose sum is σ = 63295392. Its totient is φ = 63295390.

The previous prime is 63295381. The next prime is 63295399. The reversal of 63295391 is 19359236.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63295391 - 2²² = 59101087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63295399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31647695 + 31647696.

It is an arithmetic number, because the mean of its divisors is an integer number (31647696).

Almost surely, 2^63295391 is an apocalyptic number.

63295391 is a deficient number, since it is larger than the sum of its proper divisors (1).

63295391 is an equidigital number, since it uses as much as digits as its factorization.

63295391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43740, while the sum is 38.

The square root of 63295391 is about 7955.8400562103. The cubic root of 63295391 is about 398.5266443040.

The spelling of 63295391 in words is "sixty-three million, two hundred ninety-five thousand, three hundred ninety-one".