63422621 has 4 divisors (see below), whose sum is σ = 65468544. Its totient is φ = 61376700.

The previous prime is 63422617. The next prime is 63422651. The reversal of 63422621 is 12622436.

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 63422621 - 2² = 63422617 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 (63422651) 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, 1022915 + ... + 1022976.

It is an arithmetic number, because the mean of its divisors is an integer number (16367136).

Almost surely, 2^63422621 is an apocalyptic number.

It is an amenable number.

63422621 is a deficient number, since it is larger than the sum of its proper divisors (2045923).

63422621 is a wasteful number, since it uses less digits than its factorization.

63422621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045922.

The product of its digits is 3456, while the sum is 26.

The square root of 63422621 is about 7963.8320549846. The cubic root of 63422621 is about 398.7934915858.

The spelling of 63422621 in words is "sixty-three million, four hundred twenty-two thousand, six hundred twenty-one".