8921814 has 24 divisors (see below), whose sum is σ = 19614840. Its totient is φ = 2703360.

The previous prime is 8921791. The next prime is 8921833. The reversal of 8921814 is 4181298.

It is a super-3 number, since 3×8921814³ (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5419 + ... + 6870.

It is an arithmetic number, because the mean of its divisors is an integer number (817285).

Almost surely, 2^8921814 is an apocalyptic number.

8921814 is an abundant number, since it is smaller than the sum of its proper divisors (10693026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8921814 is a wasteful number, since it uses less digits than its factorization.

8921814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12316 (or 12305 counting only the distinct ones).

The product of its digits is 4608, while the sum is 33.

The square root of 8921814 is about 2986.9405752375. The cubic root of 8921814 is about 207.4042835264.

The spelling of 8921814 in words is "eight million, nine hundred twenty-one thousand, eight hundred fourteen".