8921371 has 2 divisors, whose sum is σ = 8921372. Its totient is φ = 8921370.

The previous prime is 8921359. The next prime is 8921377. The reversal of 8921371 is 1731298.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8921371 - 2²¹ = 6824219 is a prime.

It is not a weakly prime, because it can be changed into another prime (8921377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4460685 + 4460686.

It is an arithmetic number, because the mean of its divisors is an integer number (4460686).

Almost surely, 2^8921371 is an apocalyptic number.

8921371 is a deficient number, since it is larger than the sum of its proper divisors (1).

8921371 is an equidigital number, since it uses as much as digits as its factorization.

8921371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 31.

The square root of 8921371 is about 2986.8664181714. The cubic root of 8921371 is about 207.4008506813.

The spelling of 8921371 in words is "eight million, nine hundred twenty-one thousand, three hundred seventy-one".