63402797 has 2 divisors, whose sum is σ = 63402798. Its totient is φ = 63402796.

The previous prime is 63402751. The next prime is 63402803. The reversal of 63402797 is 79720436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49646116 + 13756681 = 7046^2 + 3709^2 .

It is a cyclic number.

It is not a de Polignac number, because 63402797 - 2⁸ = 63402541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63402797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63402727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31701398 + 31701399.

It is an arithmetic number, because the mean of its divisors is an integer number (31701399).

Almost surely, 2^63402797 is an apocalyptic number.

It is an amenable number.

63402797 is a deficient number, since it is larger than the sum of its proper divisors (1).

63402797 is an equidigital number, since it uses as much as digits as its factorization.

63402797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 63402797 is about 7962.5873307613. The cubic root of 63402797 is about 398.7519369802.

The spelling of 63402797 in words is "sixty-three million, four hundred two thousand, seven hundred ninety-seven".