3120399 has 6 divisors (see below), whose sum is σ = 4507256. Its totient is φ = 2080260.

The previous prime is 3120373. The next prime is 3120407. The reversal of 3120399 is 9930213.

It is not a de Polignac number, because 3120399 - 2¹² = 3116303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120319) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 173347 + ... + 173364.

Almost surely, 2^3120399 is an apocalyptic number.

3120399 is a deficient number, since it is larger than the sum of its proper divisors (1386857).

3120399 is a wasteful number, since it uses less digits than its factorization.

3120399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346717 (or 346714 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 3120399 is about 1766.4651142890. The cubic root of 3120399 is about 146.1291001715.

The spelling of 3120399 in words is "three million, one hundred twenty thousand, three hundred ninety-nine".