63069221 has 4 divisors (see below), whose sum is σ = 65103744. Its totient is φ = 61034700.

The previous prime is 63069211. The next prime is 63069233. The reversal of 63069221 is 12296036.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63069221 - 2⁶ = 63069157 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 (63069211) 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, 1017215 + ... + 1017276.

It is an arithmetic number, because the mean of its divisors is an integer number (16275936).

Almost surely, 2^63069221 is an apocalyptic number.

It is an amenable number.

63069221 is a deficient number, since it is larger than the sum of its proper divisors (2034523).

63069221 is a wasteful number, since it uses less digits than its factorization.

63069221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2034522.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 63069221 is about 7941.6132492082. The cubic root of 63069221 is about 398.0513998918.

The spelling of 63069221 in words is "sixty-three million, sixty-nine thousand, two hundred twenty-one".