8864421 has 8 divisors (see below), whose sum is σ = 11985984. Its totient is φ = 5826240.

The previous prime is 8864417. The next prime is 8864461. The reversal of 8864421 is 1244688.

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

It is not a de Polignac number, because 8864421 - 2² = 8864417 is a prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8864411) 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, 20596 + ... + 21021.

It is an arithmetic number, because the mean of its divisors is an integer number (1498248).

Almost surely, 2^8864421 is an apocalyptic number.

It is an amenable number.

8864421 is a deficient number, since it is larger than the sum of its proper divisors (3121563).

8864421 is a wasteful number, since it uses less digits than its factorization.

8864421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41691.

The product of its digits is 12288, while the sum is 33.

The square root of 8864421 is about 2977.3177526089. The cubic root of 8864421 is about 206.9585905172.

The spelling of 8864421 in words is "eight million, eight hundred sixty-four thousand, four hundred twenty-one".