381755679 has 8 divisors (see below), whose sum is σ = 531138432. Its totient is φ = 243438360.

The previous prime is 381755663. The next prime is 381755683. The reversal of 381755679 is 976557183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 381755679 - 2⁴ = 381755663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381755579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2766277 + ... + 2766414.

It is an arithmetic number, because the mean of its divisors is an integer number (66392304).

Almost surely, 2^381755679 is an apocalyptic number.

381755679 is a deficient number, since it is larger than the sum of its proper divisors (149382753).

381755679 is a wasteful number, since it uses less digits than its factorization.

381755679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5532717.

The product of its digits is 1587600, while the sum is 51.

The square root of 381755679 is about 19538.5690110612. The cubic root of 381755679 is about 725.4294270847.

The spelling of 381755679 in words is "three hundred eighty-one million, seven hundred fifty-five thousand, six hundred seventy-nine".