63289973 has 2 divisors, whose sum is σ = 63289974. Its totient is φ = 63289972.

The previous prime is 63289939. The next prime is 63289979. The reversal of 63289973 is 37998236.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61105489 + 2184484 = 7817^2 + 1478^2 .

It is a cyclic number.

It is not a de Polignac number, because 63289973 - 2⁶ = 63289909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63289979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31644986 + 31644987.

It is an arithmetic number, because the mean of its divisors is an integer number (31644987).

Almost surely, 2^63289973 is an apocalyptic number.

It is an amenable number.

63289973 is a deficient number, since it is larger than the sum of its proper divisors (1).

63289973 is an equidigital number, since it uses as much as digits as its factorization.

63289973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 47.

The square root of 63289973 is about 7955.4995443404. The cubic root of 63289973 is about 398.5152728653.

The spelling of 63289973 in words is "sixty-three million, two hundred eighty-nine thousand, nine hundred seventy-three".