3874789 has 4 divisors (see below), whose sum is σ = 3890124. Its totient is φ = 3859456.

The previous prime is 3874763. The next prime is 3874799. The reversal of 3874789 is 9874783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9874783 = 73 ⋅135271.

It can be written as a sum of positive squares in 2 ways, for example, as 2030625 + 1844164 = 1425^2 + 1358^2 .

It is a cyclic number.

It is not a de Polignac number, because 3874789 - 2¹⁷ = 3743717 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3874799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7282 + ... + 7795.

It is an arithmetic number, because the mean of its divisors is an integer number (972531).

Almost surely, 2^3874789 is an apocalyptic number.

It is an amenable number.

3874789 is a deficient number, since it is larger than the sum of its proper divisors (15335).

3874789 is a wasteful number, since it uses less digits than its factorization.

3874789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15334.

The product of its digits is 338688, while the sum is 46.

The square root of 3874789 is about 1968.4483737198. The cubic root of 3874789 is about 157.0661816804.

The spelling of 3874789 in words is "three million, eight hundred seventy-four thousand, seven hundred eighty-nine".