8890091 has 4 divisors (see below), whose sum is σ = 10160112. Its totient is φ = 7620072.

The previous prime is 8890073. The next prime is 8890093. The reversal of 8890091 is 1900988.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8890091 - 2¹⁴ = 8873707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8890093) 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, 635000 + ... + 635013.

It is an arithmetic number, because the mean of its divisors is an integer number (2540028).

Almost surely, 2^8890091 is an apocalyptic number.

8890091 is a deficient number, since it is larger than the sum of its proper divisors (1270021).

8890091 is a wasteful number, since it uses less digits than its factorization.

8890091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270020.

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 8890091 is about 2981.6255633463. The cubic root of 8890091 is about 207.1581714061.

The spelling of 8890091 in words is "eight million, eight hundred ninety thousand, ninety-one".