9001799 has 2 divisors, whose sum is σ = 9001800. Its totient is φ = 9001798.

The previous prime is 9001793. The next prime is 9001829. The reversal of 9001799 is 9971009.

It is a happy number.

9001799 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9001799 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9001793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4500899 + 4500900.

It is an arithmetic number, because the mean of its divisors is an integer number (4500900).

Almost surely, 2^9001799 is an apocalyptic number.

9001799 is a deficient number, since it is larger than the sum of its proper divisors (1).

9001799 is an equidigital number, since it uses as much as digits as its factorization.

9001799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5103, while the sum is 35.

The square root of 9001799 is about 3000.2998183515. The cubic root of 9001799 is about 208.0222409033.

It can be divided in two parts, 900 and 1799, that multiplied together give a triangular number (1619100 = T₁₇₉₉).

The spelling of 9001799 in words is "nine million, one thousand, seven hundred ninety-nine".