63402847 has 2 divisors, whose sum is σ = 63402848. Its totient is φ = 63402846.

The previous prime is 63402817. The next prime is 63402863. The reversal of 63402847 is 74820436.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63402847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63402817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31701423 + 31701424.

It is an arithmetic number, because the mean of its divisors is an integer number (31701424).

Almost surely, 2^63402847 is an apocalyptic number.

63402847 is a deficient number, since it is larger than the sum of its proper divisors (1).

63402847 is an equidigital number, since it uses as much as digits as its factorization.

63402847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 63402847 is about 7962.5904704436. The cubic root of 63402847 is about 398.7520417999.

The spelling of 63402847 in words is "sixty-three million, four hundred two thousand, eight hundred forty-seven".