220023987 has 8 divisors (see below), whose sum is σ = 293529600. Its totient is φ = 146600520.

The previous prime is 220023961. The next prime is 220023989. The reversal of 220023987 is 789320022.

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

It is not a de Polignac number, because 220023987 - 2⁸ = 220023731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220023989) 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, 13987 + ... + 25212.

It is an arithmetic number, because the mean of its divisors is an integer number (36691200).

Almost surely, 2^220023987 is an apocalyptic number.

220023987 is a deficient number, since it is larger than the sum of its proper divisors (73505613).

220023987 is a wasteful number, since it uses less digits than its factorization.

220023987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41073.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 220023987 is about 14833.2055537567. The cubic root of 220023987 is about 603.7030130308.

The spelling of 220023987 in words is "two hundred twenty million, twenty-three thousand, nine hundred eighty-seven".