8463921 has 8 divisors (see below), whose sum is σ = 11301024. Its totient is φ = 5634720.

The previous prime is 8463919. The next prime is 8463937. The reversal of 8463921 is 1293648.

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

It is not a de Polignac number, because 8463921 - 2¹ = 8463919 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8463821) 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, 1306 + ... + 4316.

It is an arithmetic number, because the mean of its divisors is an integer number (1412628).

Almost surely, 2^8463921 is an apocalyptic number.

It is an amenable number.

8463921 is a deficient number, since it is larger than the sum of its proper divisors (2837103).

8463921 is a wasteful number, since it uses less digits than its factorization.

8463921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3951.

The product of its digits is 10368, while the sum is 33.

The square root of 8463921 is about 2909.2818701528. The cubic root of 8463921 is about 203.7935965023.

The spelling of 8463921 in words is "eight million, four hundred sixty-three thousand, nine hundred twenty-one".