63880973 has 4 divisors (see below), whose sum is σ = 68794908. Its totient is φ = 58967040.

The previous prime is 63880967. The next prime is 63881009. The reversal of 63880973 is 37908836.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11202409 + 52678564 = 3347^2 + 7258^2 .

It is a cyclic number.

It is not a de Polignac number, because 63880973 - 2¹² = 63876877 is a prime.

It is a super-2 number, since 2×63880973² = 8161557422853458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63880903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2456948 + ... + 2456973.

It is an arithmetic number, because the mean of its divisors is an integer number (17198727).

Almost surely, 2^63880973 is an apocalyptic number.

It is an amenable number.

63880973 is a deficient number, since it is larger than the sum of its proper divisors (4913935).

63880973 is a wasteful number, since it uses less digits than its factorization.

63880973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4913934.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 63880973 is about 7992.5573504355. The cubic root of 63880973 is about 399.7518731979.

The spelling of 63880973 in words is "sixty-three million, eight hundred eighty thousand, nine hundred seventy-three".