3138379397 has 16 divisors (see below), whose sum is σ = 3353132160. Its totient is φ = 2928909312.

The previous prime is 3138379373. The next prime is 3138379403. The reversal of 3138379397 is 7939738313.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3138379397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138379327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 354173 + ... + 362925.

It is an arithmetic number, because the mean of its divisors is an integer number (209570760).

Almost surely, 2^3138379397 is an apocalyptic number.

It is an amenable number.

3138379397 is a deficient number, since it is larger than the sum of its proper divisors (214752763).

3138379397 is a wasteful number, since it uses less digits than its factorization.

3138379397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9052.

The product of its digits is 2571912, while the sum is 53.

The square root of 3138379397 is about 56021.2405878342. The cubic root of 3138379397 is about 1464.0923834933.

The spelling of 3138379397 in words is "three billion, one hundred thirty-eight million, three hundred seventy-nine thousand, three hundred ninety-seven".