3912491 has 8 divisors (see below), whose sum is σ = 4383984. Its totient is φ = 3460320.

The previous prime is 3912487. The next prime is 3912497. The reversal of 3912491 is 1942193.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3912491 - 2² = 3912487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3912497) 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, 4400 + ... + 5213.

It is an arithmetic number, because the mean of its divisors is an integer number (547998).

Almost surely, 2^3912491 is an apocalyptic number.

3912491 is a deficient number, since it is larger than the sum of its proper divisors (471493).

3912491 is a wasteful number, since it uses less digits than its factorization.

3912491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9661.

The product of its digits is 1944, while the sum is 29.

The square root of 3912491 is about 1978.0017694633. The cubic root of 3912491 is about 157.5739603924.

It can be divided in two parts, 391 and 2491, that added together give a palindrome (2882).

The spelling of 3912491 in words is "three million, nine hundred twelve thousand, four hundred ninety-one".