3906291 has 8 divisors (see below), whose sum is σ = 5232640. Its totient is φ = 2592072.

The previous prime is 3906283. The next prime is 3906293. The reversal of 3906291 is 1926093.

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

It is not a de Polignac number, because 3906291 - 2³ = 3906283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3906293) 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, 2251 + ... + 3588.

It is an arithmetic number, because the mean of its divisors is an integer number (654080).

Almost surely, 2^3906291 is an apocalyptic number.

3906291 is a deficient number, since it is larger than the sum of its proper divisors (1326349).

3906291 is a wasteful number, since it uses less digits than its factorization.

3906291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6065.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 3906291 is about 1976.4339098487. The cubic root of 3906291 is about 157.4906822404.

The spelling of 3906291 in words is "three million, nine hundred six thousand, two hundred ninety-one".