8354721 has 8 divisors (see below), whose sum is σ = 11183040. Its totient is φ = 5548112.

The previous prime is 8354713. The next prime is 8354729. The reversal of 8354721 is 1274538.

It is an interprime number because it is at equal distance from previous prime (8354713) and next prime (8354729).

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

It is a cyclic number.

It is not a de Polignac number, because 8354721 - 2³ = 8354713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8354729) 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, 4506 + ... + 6083.

It is an arithmetic number, because the mean of its divisors is an integer number (1397880).

Almost surely, 2^8354721 is an apocalyptic number.

It is an amenable number.

8354721 is a deficient number, since it is larger than the sum of its proper divisors (2828319).

8354721 is a wasteful number, since it uses less digits than its factorization.

8354721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10855.

The product of its digits is 6720, while the sum is 30.

The square root of 8354721 is about 2890.4534246377. The cubic root of 8354721 is about 202.9133638251.

The spelling of 8354721 in words is "eight million, three hundred fifty-four thousand, seven hundred twenty-one".