3997069 has 2 divisors, whose sum is σ = 3997070. Its totient is φ = 3997068.

The previous prime is 3997061. The next prime is 3997111. The reversal of 3997069 is 9607993.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2064969 + 1932100 = 1437^2 + 1390^2 .

It is a cyclic number.

It is not a de Polignac number, because 3997069 - 2³ = 3997061 is a prime.

It is a super-2 number, since 2×3997069² = 31953121181522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3997061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1998534 + 1998535.

It is an arithmetic number, because the mean of its divisors is an integer number (1998535).

Almost surely, 2^3997069 is an apocalyptic number.

It is an amenable number.

3997069 is a deficient number, since it is larger than the sum of its proper divisors (1).

3997069 is an equidigital number, since it uses as much as digits as its factorization.

3997069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91854, while the sum is 43.

The square root of 3997069 is about 1999.2671157202. The cubic root of 3997069 is about 158.7013234521.

The spelling of 3997069 in words is "three million, nine hundred ninety-seven thousand, sixty-nine".