63444069 has 24 divisors (see below), whose sum is σ = 98967960. Its totient is φ = 38932992.

The previous prime is 63444067. The next prime is 63444077. The reversal of 63444069 is 96044436.

It can be written as a sum of positive squares in 4 ways, for example, as 50625 + 63393444 = 225^2 + 7962^2 .

It is not a de Polignac number, because 63444069 - 2¹ = 63444067 is a prime.

It is a super-2 number, since 2×63444069² = 8050299782553522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63444061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66097 + ... + 67049.

It is an arithmetic number, because the mean of its divisors is an integer number (4123665).

Almost surely, 2^63444069 is an apocalyptic number.

It is an amenable number.

63444069 is a deficient number, since it is larger than the sum of its proper divisors (35523891).

63444069 is a wasteful number, since it uses less digits than its factorization.

63444069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541 (or 1538 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 63444069 is about 7965.1785290727. The cubic root of 63444069 is about 398.8384406312.

The spelling of 63444069 in words is "sixty-three million, four hundred forty-four thousand, sixty-nine".