3120818 has 4 divisors (see below), whose sum is σ = 4681230. Its totient is φ = 1560408.

The previous prime is 3120791. The next prime is 3120827. The reversal of 3120818 is 8180213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2393209 + 727609 = 1547^2 + 853^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3120793 and 3120802.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 780203 + ... + 780206.

Almost surely, 2^3120818 is an apocalyptic number.

3120818 is a deficient number, since it is larger than the sum of its proper divisors (1560412).

3120818 is a wasteful number, since it uses less digits than its factorization.

3120818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560411.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 3120818 is about 1766.5837087441. The cubic root of 3120818 is about 146.1356405052.

The spelling of 3120818 in words is "three million, one hundred twenty thousand, eight hundred eighteen".