3921370 has 16 divisors (see below), whose sum is σ = 7089408. Its totient is φ = 1561680.

The previous prime is 3921367. The next prime is 3921377. The reversal of 3921370 is 731293.

It is not an unprimeable number, because it can be changed into a prime (3921377) 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, 1987 + ... + 3433.

It is an arithmetic number, because the mean of its divisors is an integer number (443088).

Almost surely, 2^3921370 is an apocalyptic number.

3921370 is a deficient number, since it is larger than the sum of its proper divisors (3168038).

3921370 is a wasteful number, since it uses less digits than its factorization.

3921370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1725.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 3921370 is about 1980.2449343452. The cubic root of 3921370 is about 157.6930696893.

The spelling of 3921370 in words is "three million, nine hundred twenty-one thousand, three hundred seventy".