3939495 has 32 divisors (see below), whose sum is σ = 7630848. Its totient is φ = 1694208.

The previous prime is 3939473. The next prime is 3939497. The reversal of 3939495 is 5949393.

It is a happy number.

It is not a de Polignac number, because 3939495 - 2⁷ = 3939367 is a prime.

3939495 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3939497) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 682 + ... + 2888.

It is an arithmetic number, because the mean of its divisors is an integer number (238464).

Almost surely, 2^3939495 is an apocalyptic number.

3939495 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3939495 is a deficient number, since it is larger than the sum of its proper divisors (3691353).

3939495 is a wasteful number, since it uses less digits than its factorization.

3939495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2239.

The product of its digits is 131220, while the sum is 42.

The square root of 3939495 is about 1984.8161123893. The cubic root of 3939495 is about 157.9356545124.

The spelling of 3939495 in words is "three million, nine hundred thirty-nine thousand, four hundred ninety-five".