63367021 has 8 divisors (see below), whose sum is σ = 64559160. Its totient is φ = 62185728.

The previous prime is 63367019. The next prime is 63367027. The reversal of 63367021 is 12076336.

It can be written as a sum of positive squares in 4 ways, for example, as 3861225 + 59505796 = 1965^2 + 7714^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63367021 - 2¹ = 63367019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63367027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9595 + ... + 14791.

It is an arithmetic number, because the mean of its divisors is an integer number (8069895).

Almost surely, 2^63367021 is an apocalyptic number.

It is an amenable number.

63367021 is a deficient number, since it is larger than the sum of its proper divisors (1192139).

63367021 is a wasteful number, since it uses less digits than its factorization.

63367021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5423.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 63367021 is about 7960.3405077924. The cubic root of 63367021 is about 398.6769222383.

The spelling of 63367021 in words is "sixty-three million, three hundred sixty-seven thousand, twenty-one".