63967567 has 2 divisors, whose sum is σ = 63967568. Its totient is φ = 63967566.

The previous prime is 63967537. The next prime is 63967597. The reversal of 63967567 is 76576936.

It is a balanced prime because it is at equal distance from previous prime (63967537) and next prime (63967597).

It is a cyclic number.

It is not a de Polignac number, because 63967567 - 2¹¹ = 63965519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63967567.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63967507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31983783 + 31983784.

It is an arithmetic number, because the mean of its divisors is an integer number (31983784).

Almost surely, 2^63967567 is an apocalyptic number.

63967567 is a deficient number, since it is larger than the sum of its proper divisors (1).

63967567 is an equidigital number, since it uses as much as digits as its factorization.

63967567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1428840, while the sum is 49.

The square root of 63967567 is about 7997.9726806235. The cubic root of 63967567 is about 399.9324198329.

The spelling of 63967567 in words is "sixty-three million, nine hundred sixty-seven thousand, five hundred sixty-seven".