63444071 has 4 divisors (see below), whose sum is σ = 63489600. Its totient is φ = 63398544.

The previous prime is 63444067. The next prime is 63444077. The reversal of 63444071 is 17044436.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63444071 - 2² = 63444067 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 (63444077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20606 + ... + 23483.

It is an arithmetic number, because the mean of its divisors is an integer number (15872400).

Almost surely, 2^63444071 is an apocalyptic number.

63444071 is a deficient number, since it is larger than the sum of its proper divisors (45529).

63444071 is a wasteful number, since it uses less digits than its factorization.

63444071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45528.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 63444071 is about 7965.1786546191. The cubic root of 63444071 is about 398.8384448222.

The spelling of 63444071 in words is "sixty-three million, four hundred forty-four thousand, seventy-one".