4099995 has 24 divisors (see below), whose sum is σ = 7160400. Its totient is φ = 2170176.

The previous prime is 4099981. The next prime is 4100011. The reversal of 4099995 is 5999904.

It is a happy number.

It is not a de Polignac number, because 4099995 - 2⁷ = 4099867 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 4099995.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7801 + ... + 8309.

It is an arithmetic number, because the mean of its divisors is an integer number (298350).

Almost surely, 2^4099995 is an apocalyptic number.

4099995 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4099995 is a deficient number, since it is larger than the sum of its proper divisors (3060405).

4099995 is a wasteful number, since it uses less digits than its factorization.

4099995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699 (or 696 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 45.

The square root of 4099995 is about 2024.8444384693. The cubic root of 4099995 is about 160.0520013265.

It can be divided in two parts, 409 and 9995, that added together give a square (10404 = 102²).

The spelling of 4099995 in words is "four million, ninety-nine thousand, nine hundred ninety-five".