221614893 has 8 divisors (see below), whose sum is σ = 328318400. Its totient is φ = 147743244.

The previous prime is 221614871. The next prime is 221614919. The reversal of 221614893 is 398416122.

It is not a de Polignac number, because 221614893 - 2¹⁰ = 221613869 is a prime.

It is a super-2 number, since 2×221614893² = 98226321598802898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221613893) 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, 4103953 + ... + 4104006.

It is an arithmetic number, because the mean of its divisors is an integer number (41039800).

Almost surely, 2^221614893 is an apocalyptic number.

It is an amenable number.

221614893 is a deficient number, since it is larger than the sum of its proper divisors (106703507).

221614893 is an equidigital number, since it uses as much as digits as its factorization.

221614893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8207968 (or 8207962 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 221614893 is about 14886.7354715532. The cubic root of 221614893 is about 605.1545656125.

The spelling of 221614893 in words is "two hundred twenty-one million, six hundred fourteen thousand, eight hundred ninety-three".