63288749 has 2 divisors, whose sum is σ = 63288750. Its totient is φ = 63288748.

The previous prime is 63288713. The next prime is 63288751. The reversal of 63288749 is 94788236.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63282025 + 6724 = 7955^2 + 82^2 .

It is a cyclic number.

It is not a de Polignac number, because 63288749 - 2¹⁶ = 63223213 is a prime.

It is a Sophie Germain prime.

Together with 63288751, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63288149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31644374 + 31644375.

It is an arithmetic number, because the mean of its divisors is an integer number (31644375).

Almost surely, 2^63288749 is an apocalyptic number.

It is an amenable number.

63288749 is a deficient number, since it is larger than the sum of its proper divisors (1).

63288749 is an equidigital number, since it uses as much as digits as its factorization.

63288749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 47.

The square root of 63288749 is about 7955.4226160525. The cubic root of 63288749 is about 398.5127038126.

The spelling of 63288749 in words is "sixty-three million, two hundred eighty-eight thousand, seven hundred forty-nine".