63043989 has 16 divisors (see below), whose sum is σ = 87931392. Its totient is φ = 40102128.

The previous prime is 63043963. The next prime is 63043991. The reversal of 63043989 is 98934036.

It is not a de Polignac number, because 63043989 - 2⁷ = 63043861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63043989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63043949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35214 + ... + 36960.

It is an arithmetic number, because the mean of its divisors is an integer number (5495712).

Almost surely, 2^63043989 is an apocalyptic number.

63043989 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

63043989 is a deficient number, since it is larger than the sum of its proper divisors (24887403).

63043989 is a wasteful number, since it uses less digits than its factorization.

63043989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2296.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 63043989 is about 7940.0244961839. The cubic root of 63043989 is about 397.9983102207.

The spelling of 63043989 in words is "sixty-three million, forty-three thousand, nine hundred eighty-nine".