63728029 has 2 divisors, whose sum is σ = 63728030. Its totient is φ = 63728028.

The previous prime is 63728011. The next prime is 63728039. The reversal of 63728029 is 92082736.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62568100 + 1159929 = 7910^2 + 1077^2 .

It is a cyclic number.

It is not a de Polignac number, because 63728029 - 2⁵ = 63727997 is a prime.

It is a super-2 number, since 2×63728029² = 8122523360449682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63728039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31864014 + 31864015.

It is an arithmetic number, because the mean of its divisors is an integer number (31864015).

Almost surely, 2^63728029 is an apocalyptic number.

It is an amenable number.

63728029 is a deficient number, since it is larger than the sum of its proper divisors (1).

63728029 is an equidigital number, since it uses as much as digits as its factorization.

63728029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 63728029 is about 7982.9837153786. The cubic root of 63728029 is about 399.4325892432.

The spelling of 63728029 in words is "sixty-three million, seven hundred twenty-eight thousand, twenty-nine".