63749663 has 2 divisors, whose sum is σ = 63749664. Its totient is φ = 63749662.

The previous prime is 63749657. The next prime is 63749669. The reversal of 63749663 is 36694736.

It is a balanced prime because it is at equal distance from previous prime (63749657) and next prime (63749669).

It is a cyclic number.

It is not a de Polignac number, because 63749663 - 2⁶ = 63749599 is a prime.

It is a super-2 number, since 2×63749663² = 8128039065227138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63749669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31874831 + 31874832.

It is an arithmetic number, because the mean of its divisors is an integer number (31874832).

Almost surely, 2^63749663 is an apocalyptic number.

63749663 is a deficient number, since it is larger than the sum of its proper divisors (1).

63749663 is an equidigital number, since it uses as much as digits as its factorization.

63749663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 44.

The square root of 63749663 is about 7984.3386075492. The cubic root of 63749663 is about 399.4777831038.

The spelling of 63749663 in words is "sixty-three million, seven hundred forty-nine thousand, six hundred sixty-three".