63406547 has 2 divisors, whose sum is σ = 63406548. Its totient is φ = 63406546.

The previous prime is 63406543. The next prime is 63406571. The reversal of 63406547 is 74560436.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63406547 - 2² = 63406543 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (63406543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31703273 + 31703274.

It is an arithmetic number, because the mean of its divisors is an integer number (31703274).

Almost surely, 2^63406547 is an apocalyptic number.

63406547 is a deficient number, since it is larger than the sum of its proper divisors (1).

63406547 is an equidigital number, since it uses as much as digits as its factorization.

63406547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 63406547 is about 7962.8228035038. The cubic root of 63406547 is about 398.7597983068.

The spelling of 63406547 in words is "sixty-three million, four hundred six thousand, five hundred forty-seven".