63621022 has 4 divisors (see below), whose sum is σ = 95431536. Its totient is φ = 31810510.

The previous prime is 63621007. The next prime is 63621049. The reversal of 63621022 is 22012636.

It is a happy number.

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

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 63620984 and 63621002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15905254 + ... + 15905257.

It is an arithmetic number, because the mean of its divisors is an integer number (23857884).

Almost surely, 2^63621022 is an apocalyptic number.

63621022 is a deficient number, since it is larger than the sum of its proper divisors (31810514).

63621022 is a wasteful number, since it uses less digits than its factorization.

63621022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31810513.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 63621022 is about 7976.2787062640. The cubic root of 63621022 is about 399.2088989292.

Adding to 63621022 its reverse (22012636), we get a palindrome (85633658).

The spelling of 63621022 in words is "sixty-three million, six hundred twenty-one thousand, twenty-two".