63873969 has 8 divisors (see below), whose sum is σ = 85419360. Its totient is φ = 42455616.

The previous prime is 63873961. The next prime is 63873973. The reversal of 63873969 is 96937836.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63873969 - 2³ = 63873961 is a prime.

It is a super-2 number, since 2×63873969² = 8159767831625922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63873961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30579 + ... + 32600.

It is an arithmetic number, because the mean of its divisors is an integer number (10677420).

Almost surely, 2^63873969 is an apocalyptic number.

It is an amenable number.

63873969 is a deficient number, since it is larger than the sum of its proper divisors (21545391).

63873969 is a wasteful number, since it uses less digits than its factorization.

63873969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63519.

The product of its digits is 1469664, while the sum is 51.

The square root of 63873969 is about 7992.1191807930. The cubic root of 63873969 is about 399.7372628775.

The spelling of 63873969 in words is "sixty-three million, eight hundred seventy-three thousand, nine hundred sixty-nine".