63616667 has 2 divisors, whose sum is σ = 63616668. Its totient is φ = 63616666.

The previous prime is 63616661. The next prime is 63616673. The reversal of 63616667 is 76661636.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (63616661) and next prime (63616673).

It is a cyclic number.

It is not a de Polignac number, because 63616667 - 2⁶ = 63616603 is a prime.

It is not a weakly prime, because it can be changed into another prime (63616661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31808333 + 31808334.

It is an arithmetic number, because the mean of its divisors is an integer number (31808334).

Almost surely, 2^63616667 is an apocalyptic number.

63616667 is a deficient number, since it is larger than the sum of its proper divisors (1).

63616667 is an equidigital number, since it uses as much as digits as its factorization.

63616667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 41.

The square root of 63616667 is about 7976.0057046118. The cubic root of 63616667 is about 399.1997898100.

The spelling of 63616667 in words is "sixty-three million, six hundred sixteen thousand, six hundred sixty-seven".