3872089 has 4 divisors (see below), whose sum is σ = 4169956. Its totient is φ = 3574224.

The previous prime is 3872059. The next prime is 3872101. The reversal of 3872089 is 9802783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9802783 = 29 ⋅338027.

It can be written as a sum of positive squares in 2 ways, for example, as 1247689 + 2624400 = 1117^2 + 1620^2 .

It is a cyclic number.

It is not a de Polignac number, because 3872089 - 2⁷ = 3871961 is a prime.

It is an Ulam number.

It is a Duffinian number.

3872089 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3872059) 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, 148914 + ... + 148939.

It is an arithmetic number, because the mean of its divisors is an integer number (1042489).

Almost surely, 2^3872089 is an apocalyptic number.

It is an amenable number.

3872089 is a deficient number, since it is larger than the sum of its proper divisors (297867).

3872089 is a wasteful number, since it uses less digits than its factorization.

3872089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297866.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 3872089 is about 1967.7624348483. The cubic root of 3872089 is about 157.0296913296.

It can be divided in two parts, 38720 and 89, that added together give a square (38809 = 197²).

The spelling of 3872089 in words is "three million, eight hundred seventy-two thousand, eighty-nine".