3949397 has 8 divisors (see below), whose sum is σ = 4197600. Its totient is φ = 3705264.

The previous prime is 3949391. The next prime is 3949409. The reversal of 3949397 is 7939493.

It is a happy number.

3949397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3949397 - 2⁶ = 3949333 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3949391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1118 + ... + 3024.

It is an arithmetic number, because the mean of its divisors is an integer number (524700).

Almost surely, 2^3949397 is an apocalyptic number.

It is an amenable number.

3949397 is a deficient number, since it is larger than the sum of its proper divisors (248203).

3949397 is a wasteful number, since it uses less digits than its factorization.

3949397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2035.

The product of its digits is 183708, while the sum is 44.

The square root of 3949397 is about 1987.3089845316. The cubic root of 3949397 is about 158.0678686158.

The spelling of 3949397 in words is "three million, nine hundred forty-nine thousand, three hundred ninety-seven".