3123849 has 4 divisors (see below), whose sum is σ = 4165136. Its totient is φ = 2082564.

The previous prime is 3123833. The next prime is 3123853. The reversal of 3123849 is 9483213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9483213 = 3 ⋅3161071.

It is not a de Polignac number, because 3123849 - 2⁴ = 3123833 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3123859) 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, 520639 + ... + 520644.

It is an arithmetic number, because the mean of its divisors is an integer number (1041284).

Almost surely, 2^3123849 is an apocalyptic number.

It is an amenable number.

3123849 is a deficient number, since it is larger than the sum of its proper divisors (1041287).

3123849 is a wasteful number, since it uses less digits than its factorization.

3123849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041286.

The product of its digits is 5184, while the sum is 30.

The square root of 3123849 is about 1767.4413710220. The cubic root of 3123849 is about 146.1829351362.

The spelling of 3123849 in words is "three million, one hundred twenty-three thousand, eight hundred forty-nine".