63072973 has 2 divisors, whose sum is σ = 63072974. Its totient is φ = 63072972.

The previous prime is 63072967. The next prime is 63073007. The reversal of 63072973 is 37927036.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51796809 + 11276164 = 7197^2 + 3358^2 .

It is a cyclic number.

It is not a de Polignac number, because 63072973 - 2⁹ = 63072461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63072953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31536486 + 31536487.

It is an arithmetic number, because the mean of its divisors is an integer number (31536487).

Almost surely, 2^63072973 is an apocalyptic number.

It is an amenable number.

63072973 is a deficient number, since it is larger than the sum of its proper divisors (1).

63072973 is an equidigital number, since it uses as much as digits as its factorization.

63072973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628, while the sum is 37.

The square root of 63072973 is about 7941.8494697394. The cubic root of 63072973 is about 398.0592931199.

The spelling of 63072973 in words is "sixty-three million, seventy-two thousand, nine hundred seventy-three".