8460921 has 16 divisors (see below), whose sum is σ = 12933504. Its totient is φ = 4819584.

The previous prime is 8460899. The next prime is 8460931. The reversal of 8460921 is 1290648.

It is not a de Polignac number, because 8460921 - 2⁹ = 8460409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8460931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12631 + ... + 13283.

It is an arithmetic number, because the mean of its divisors is an integer number (808344).

Almost surely, 2^8460921 is an apocalyptic number.

It is an amenable number.

8460921 is a deficient number, since it is larger than the sum of its proper divisors (4472583).

8460921 is a wasteful number, since it uses less digits than its factorization.

8460921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 8460921 is about 2908.7662333024. The cubic root of 8460921 is about 203.7695157389.

The spelling of 8460921 in words is "eight million, four hundred sixty thousand, nine hundred twenty-one".