3999297 has 16 divisors (see below), whose sum is σ = 5493312. Its totient is φ = 2587200.

The previous prime is 3999283. The next prime is 3999311. The reversal of 3999297 is 7929993.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3999283) and next prime (3999311).

It is not a de Polignac number, because 3999297 - 2¹⁰ = 3998273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3999497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20203 + ... + 20399.

It is an arithmetic number, because the mean of its divisors is an integer number (343332).

Almost surely, 2^3999297 is an apocalyptic number.

It is an amenable number.

3999297 is a deficient number, since it is larger than the sum of its proper divisors (1494015).

3999297 is a wasteful number, since it uses less digits than its factorization.

3999297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368.

The product of its digits is 275562, while the sum is 48.

The square root of 3999297 is about 1999.8242422773. The cubic root of 3999297 is about 158.7308051275.

The spelling of 3999297 in words is "three million, nine hundred ninety-nine thousand, two hundred ninety-seven".