3930949 has 4 divisors (see below), whose sum is σ = 4288320. Its totient is φ = 3573580.

The previous prime is 3930923. The next prime is 3930973. The reversal of 3930949 is 9490393.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3930949 - 2¹⁷ = 3799877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3930919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178669 + ... + 178690.

It is an arithmetic number, because the mean of its divisors is an integer number (1072080).

Almost surely, 2^3930949 is an apocalyptic number.

It is an amenable number.

3930949 is a deficient number, since it is larger than the sum of its proper divisors (357371).

3930949 is a wasteful number, since it uses less digits than its factorization.

3930949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357370.

The product of its (nonzero) digits is 26244, while the sum is 37.

The square root of 3930949 is about 1982.6620992998. The cubic root of 3930949 is about 157.8213678447.

The spelling of 3930949 in words is "three million, nine hundred thirty thousand, nine hundred forty-nine".