63220887 has 6 divisors (see below), whose sum is σ = 91319072. Its totient is φ = 42147252.

The previous prime is 63220867. The next prime is 63220921. The reversal of 63220887 is 78802236.

It is a happy number.

It is not a de Polignac number, because 63220887 - 2⁶ = 63220823 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 (63220837) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3512263 + ... + 3512280.

Almost surely, 2^63220887 is an apocalyptic number.

63220887 is a deficient number, since it is larger than the sum of its proper divisors (28098185).

63220887 is a wasteful number, since it uses less digits than its factorization.

63220887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7024549 (or 7024546 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 63220887 is about 7951.1563309999. The cubic root of 63220887 is about 398.3702164494.

The spelling of 63220887 in words is "sixty-three million, two hundred twenty thousand, eight hundred eighty-seven".