63220897 has 4 divisors (see below), whose sum is σ = 63270576. Its totient is φ = 63171220.

The previous prime is 63220867. The next prime is 63220921. The reversal of 63220897 is 79802236.

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 63220897 - 2⁷ = 63220769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63220837) 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, 22879 + ... + 25492.

It is an arithmetic number, because the mean of its divisors is an integer number (15817644).

Almost surely, 2^63220897 is an apocalyptic number.

It is an amenable number.

63220897 is a deficient number, since it is larger than the sum of its proper divisors (49679).

63220897 is a wasteful number, since it uses less digits than its factorization.

63220897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49678.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 63220897 is about 7951.1569598392. The cubic root of 63220897 is about 398.3702374536.

The spelling of 63220897 in words is "sixty-three million, two hundred twenty thousand, eight hundred ninety-seven".