3924945 has 12 divisors (see below), whose sum is σ = 6803316. Its totient is φ = 2093280.

The previous prime is 3924937. The next prime is 3924953. The reversal of 3924945 is 5494293.

It is an interprime number because it is at equal distance from previous prime (3924937) and next prime (3924953).

It can be written as a sum of positive squares in 2 ways, for example, as 2985984 + 938961 = 1728^2 + 969^2 .

It is not a de Polignac number, because 3924945 - 2³ = 3924937 is a prime.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43566 + ... + 43655.

It is an arithmetic number, because the mean of its divisors is an integer number (566943).

Almost surely, 2^3924945 is an apocalyptic number.

It is an amenable number.

3924945 is a deficient number, since it is larger than the sum of its proper divisors (2878371).

3924945 is a wasteful number, since it uses less digits than its factorization.

3924945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87232 (or 87229 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 3924945 is about 1981.1473948195. The cubic root of 3924945 is about 157.7409765426.

The spelling of 3924945 in words is "three million, nine hundred twenty-four thousand, nine hundred forty-five".