4891099 has 2 divisors, whose sum is σ = 4891100. Its totient is φ = 4891098.

The previous prime is 4891093. The next prime is 4891129. The reversal of 4891099 is 9901984.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4891099 - 2³ = 4891091 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4891091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2445549 + 2445550.

It is an arithmetic number, because the mean of its divisors is an integer number (2445550).

Almost surely, 2^4891099 is an apocalyptic number.

4891099 is a deficient number, since it is larger than the sum of its proper divisors (1).

4891099 is an equidigital number, since it uses as much as digits as its factorization.

4891099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 4891099 is about 2211.5829172789. The cubic root of 4891099 is about 169.7470170242.

The spelling of 4891099 in words is "four million, eight hundred ninety-one thousand, ninety-nine".