8890447 has 2 divisors, whose sum is σ = 8890448. Its totient is φ = 8890446.

The previous prime is 8890429. The next prime is 8890457. The reversal of 8890447 is 7440988.

8890447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8890447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8890457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4445223 + 4445224.

It is an arithmetic number, because the mean of its divisors is an integer number (4445224).

Almost surely, 2^8890447 is an apocalyptic number.

8890447 is a deficient number, since it is larger than the sum of its proper divisors (1).

8890447 is an equidigital number, since it uses as much as digits as its factorization.

8890447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 8890447 is about 2981.6852617270. The cubic root of 8890447 is about 207.1609365569.

The spelling of 8890447 in words is "eight million, eight hundred ninety thousand, four hundred forty-seven".