3121377 has 16 divisors (see below), whose sum is σ = 5007360. Its totient is φ = 1689552.

The previous prime is 3121367. The next prime is 3121379. The reversal of 3121377 is 7731213.

3121377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3121377 - 2⁴ = 3121361 is a prime.

It is a super-2 number, since 2×3121377² = 19485988752258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3121379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3513 + ... + 4310.

It is an arithmetic number, because the mean of its divisors is an integer number (312960).

Almost surely, 2^3121377 is an apocalyptic number.

It is an amenable number.

3121377 is a deficient number, since it is larger than the sum of its proper divisors (1885983).

3121377 is a wasteful number, since it uses less digits than its factorization.

3121377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7852.

The product of its digits is 882, while the sum is 24.

The square root of 3121377 is about 1766.7419166364. The cubic root of 3121377 is about 146.1443652419.

The spelling of 3121377 in words is "three million, one hundred twenty-one thousand, three hundred seventy-seven".