3921495 has 8 divisors (see below), whose sum is σ = 6274416. Its totient is φ = 2091456.

The previous prime is 3921451. The next prime is 3921497. The reversal of 3921495 is 5941293.

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

It is not a de Polignac number, because 3921495 - 2⁷ = 3921367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3921497) 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, 130702 + ... + 130731.

It is an arithmetic number, because the mean of its divisors is an integer number (784302).

Almost surely, 2^3921495 is an apocalyptic number.

3921495 is a deficient number, since it is larger than the sum of its proper divisors (2352921).

3921495 is a wasteful number, since it uses less digits than its factorization.

3921495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261441.

The product of its digits is 9720, while the sum is 33.

The square root of 3921495 is about 1980.2764958460. The cubic root of 3921495 is about 157.6947452452.

The spelling of 3921495 in words is "three million, nine hundred twenty-one thousand, four hundred ninety-five".