3924685 has 8 divisors (see below), whose sum is σ = 4730616. Its totient is φ = 3125760.

The previous prime is 3924677. The next prime is 3924689. The reversal of 3924685 is 5864293.

It can be written as a sum of positive squares in 4 ways, for example, as 1447209 + 2477476 = 1203^2 + 1574^2 .

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

It is not a de Polignac number, because 3924685 - 2³ = 3924677 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 (3924689) 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, 424 + ... + 2833.

It is an arithmetic number, because the mean of its divisors is an integer number (591327).

Almost surely, 2^3924685 is an apocalyptic number.

It is an amenable number.

3924685 is a deficient number, since it is larger than the sum of its proper divisors (805931).

3924685 is a wasteful number, since it uses less digits than its factorization.

3924685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3503.

The product of its digits is 51840, while the sum is 37.

The square root of 3924685 is about 1981.0817751925. The cubic root of 3924685 is about 157.7374933889.

The spelling of 3924685 in words is "three million, nine hundred twenty-four thousand, six hundred eighty-five".