8374921 has 4 divisors (see below), whose sum is σ = 8739072. Its totient is φ = 8010772.

The previous prime is 8374907. The next prime is 8374937. The reversal of 8374921 is 1294738.

8374921 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8374921 - 2⁹ = 8374409 is a prime.

It is a super-3 number, since 3×8374921³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8374021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182041 + ... + 182086.

It is an arithmetic number, because the mean of its divisors is an integer number (2184768).

Almost surely, 2^8374921 is an apocalyptic number.

It is an amenable number.

8374921 is a deficient number, since it is larger than the sum of its proper divisors (364151).

8374921 is a wasteful number, since it uses less digits than its factorization.

8374921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364150.

The product of its digits is 12096, while the sum is 34.

The square root of 8374921 is about 2893.9455765442. The cubic root of 8374921 is about 203.0767664883.

The spelling of 8374921 in words is "eight million, three hundred seventy-four thousand, nine hundred twenty-one".