3967249 has 8 divisors (see below), whose sum is σ = 4660992. Its totient is φ = 3329040.

The previous prime is 3967241. The next prime is 3967253. The reversal of 3967249 is 9427693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3967249 - 2³ = 3967241 is a prime.

It is a Duffinian number.

3967249 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3967241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13729 + ... + 14014.

It is an arithmetic number, because the mean of its divisors is an integer number (582624).

Almost surely, 2^3967249 is an apocalyptic number.

It is an amenable number.

3967249 is a deficient number, since it is larger than the sum of its proper divisors (693743).

3967249 is a wasteful number, since it uses less digits than its factorization.

3967249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27767.

The product of its digits is 81648, while the sum is 40.

The square root of 3967249 is about 1991.7954212218. The cubic root of 3967249 is about 158.3056759324.

The spelling of 3967249 in words is "three million, nine hundred sixty-seven thousand, two hundred forty-nine".