3997266 has 32 divisors (see below), whose sum is σ = 9840768. Its totient is φ = 1054080.

The previous prime is 3997241. The next prime is 3997267. The reversal of 3997266 is 6627993.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3997267) 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, 3115 + ... + 4206.

It is an arithmetic number, because the mean of its divisors is an integer number (307524).

Almost surely, 2^3997266 is an apocalyptic number.

3997266 is an abundant number, since it is smaller than the sum of its proper divisors (5843502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3997266 is a wasteful number, since it uses less digits than its factorization.

3997266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7346.

The product of its digits is 122472, while the sum is 42.

The square root of 3997266 is about 1999.3163831670. The cubic root of 3997266 is about 158.7039306665.

The spelling of 3997266 in words is "three million, nine hundred ninety-seven thousand, two hundred sixty-six".