3874945 has 16 divisors (see below), whose sum is σ = 4847040. Its totient is φ = 2971584.

The previous prime is 3874939. The next prime is 3874957. The reversal of 3874945 is 5494783.

It is not a de Polignac number, because 3874945 - 2⁹ = 3874433 is a prime.

It is an alternating number because its digits alternate between odd and even.

Its product of digits (120960) is a multiple of the sum of its prime divisors (384).

It is a junction number, because it is equal to n+sod(n) for n = 3874898 and 3874907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14271 + ... + 14539.

It is an arithmetic number, because the mean of its divisors is an integer number (302940).

Almost surely, 2^3874945 is an apocalyptic number.

It is an amenable number.

3874945 is a deficient number, since it is larger than the sum of its proper divisors (972095).

3874945 is a wasteful number, since it uses less digits than its factorization.

3874945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384.

The product of its digits is 120960, while the sum is 40.

The square root of 3874945 is about 1968.4879984394. The cubic root of 3874945 is about 157.0682894937.

The spelling of 3874945 in words is "three million, eight hundred seventy-four thousand, nine hundred forty-five".