63840527 has 2 divisors, whose sum is σ = 63840528. Its totient is φ = 63840526.

The previous prime is 63840499. The next prime is 63840541. The reversal of 63840527 is 72504836.

It is a happy number.

63840527 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63840527 is a prime.

It is a super-2 number, since 2×63840527² = 8151225775275458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63840547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31920263 + 31920264.

It is an arithmetic number, because the mean of its divisors is an integer number (31920264).

Almost surely, 2^63840527 is an apocalyptic number.

63840527 is a deficient number, since it is larger than the sum of its proper divisors (1).

63840527 is an equidigital number, since it uses as much as digits as its factorization.

63840527 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 63840527 is about 7990.0267208564. The cubic root of 63840527 is about 399.6674882498.

The spelling of 63840527 in words is "sixty-three million, eight hundred forty thousand, five hundred twenty-seven".