8921485 has 4 divisors (see below), whose sum is σ = 10705788. Its totient is φ = 7137184.

The previous prime is 8921467. The next prime is 8921569. The reversal of 8921485 is 5841298.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5841298 = 2 ⋅2920649.

It can be written as a sum of positive squares in 2 ways, for example, as 5774409 + 3147076 = 2403^2 + 1774^2 .

It is a cyclic number.

It is not a de Polignac number, because 8921485 - 2⁵ = 8921453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 892144 + ... + 892153.

It is an arithmetic number, because the mean of its divisors is an integer number (2676447).

Almost surely, 2^8921485 is an apocalyptic number.

It is an amenable number.

8921485 is a deficient number, since it is larger than the sum of its proper divisors (1784303).

8921485 is a wasteful number, since it uses less digits than its factorization.

8921485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784302.

The product of its digits is 23040, while the sum is 37.

The square root of 8921485 is about 2986.8855016555. The cubic root of 8921485 is about 207.4017340879.

The spelling of 8921485 in words is "eight million, nine hundred twenty-one thousand, four hundred eighty-five".