8941391 has 4 divisors (see below), whose sum is σ = 9093000. Its totient is φ = 8789784.

The previous prime is 8941369. The next prime is 8941397. The reversal of 8941391 is 1931498.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1931498 = 2 ⋅965749.

It is a cyclic number.

It is not a de Polignac number, because 8941391 - 2¹⁰ = 8940367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8941397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75716 + ... + 75833.

It is an arithmetic number, because the mean of its divisors is an integer number (2273250).

Almost surely, 2^8941391 is an apocalyptic number.

8941391 is a deficient number, since it is larger than the sum of its proper divisors (151609).

8941391 is a wasteful number, since it uses less digits than its factorization.

8941391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151608.

The product of its digits is 7776, while the sum is 35.

The square root of 8941391 is about 2990.2158784944. The cubic root of 8941391 is about 207.5558740519. Note that the first 3 decimals are identical.

The spelling of 8941391 in words is "eight million, nine hundred forty-one thousand, three hundred ninety-one".