4099779 has 6 divisors (see below), whose sum is σ = 5921916. Its totient is φ = 2733180.

The previous prime is 4099729. The next prime is 4099789. The reversal of 4099779 is 9779904.

It is not a de Polignac number, because 4099779 - 2⁸ = 4099523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4099729) 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 5 ways as a sum of consecutive naturals, for example, 227757 + ... + 227774.

It is an arithmetic number, because the mean of its divisors is an integer number (986986).

Almost surely, 2^4099779 is an apocalyptic number.

4099779 is a deficient number, since it is larger than the sum of its proper divisors (1822137).

4099779 is a wasteful number, since it uses less digits than its factorization.

4099779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455537 (or 455534 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The square root of 4099779 is about 2024.7911003360. The cubic root of 4099779 is about 160.0491906044.

The spelling of 4099779 in words is "four million, ninety-nine thousand, seven hundred seventy-nine".