63278741 has 2 divisors, whose sum is σ = 63278742. Its totient is φ = 63278740.

The previous prime is 63278737. The next prime is 63278833. The reversal of 63278741 is 14787236.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39062500 + 24216241 = 6250^2 + 4921^2 .

It is a cyclic number.

It is not a de Polignac number, because 63278741 - 2² = 63278737 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 63278695 and 63278704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63278141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31639370 + 31639371.

It is an arithmetic number, because the mean of its divisors is an integer number (31639371).

Almost surely, 2^63278741 is an apocalyptic number.

It is an amenable number.

63278741 is a deficient number, since it is larger than the sum of its proper divisors (1).

63278741 is an equidigital number, since it uses as much as digits as its factorization.

63278741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 38.

The square root of 63278741 is about 7954.7935862598. The cubic root of 63278741 is about 398.4916967855.

The spelling of 63278741 in words is "sixty-three million, two hundred seventy-eight thousand, seven hundred forty-one".