383879513 has 4 divisors (see below), whose sum is σ = 387467280. Its totient is φ = 380291748.

The previous prime is 383879491. The next prime is 383879539. The reversal of 383879513 is 315978383.

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.

It is a cyclic number.

It is not a de Polignac number, because 383879513 - 2⁶ = 383879449 is a prime.

It is a super-2 number, since 2×383879513² = 294726961002234338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (383879213) 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, 1793723 + ... + 1793936.

It is an arithmetic number, because the mean of its divisors is an integer number (96866820).

Almost surely, 2^383879513 is an apocalyptic number.

It is an amenable number.

383879513 is a deficient number, since it is larger than the sum of its proper divisors (3587767).

383879513 is a wasteful number, since it uses less digits than its factorization.

383879513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3587766.

The product of its digits is 544320, while the sum is 47.

The square root of 383879513 is about 19592.8434128383. The cubic root of 383879513 is about 726.7722085524.

The spelling of 383879513 in words is "three hundred eighty-three million, eight hundred seventy-nine thousand, five hundred thirteen".