380371817 has 4 divisors (see below), whose sum is σ = 434710656. Its totient is φ = 326032980.

The previous prime is 380371793. The next prime is 380371841. The reversal of 380371817 is 718173083.

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, and also an emirpimes, since its reverse is a distinct semiprime: 718173083 = 229 ⋅3136127.

It is an interprime number because it is at equal distance from previous prime (380371793) and next prime (380371841).

It is a de Polignac number, because none of the positive numbers 2^k-380371817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380373817) 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 3 ways as a sum of consecutive naturals, for example, 27169409 + ... + 27169422.

It is an arithmetic number, because the mean of its divisors is an integer number (108677664).

Almost surely, 2^380371817 is an apocalyptic number.

It is an amenable number.

380371817 is a deficient number, since it is larger than the sum of its proper divisors (54338839).

380371817 is an equidigital number, since it uses as much as digits as its factorization.

380371817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54338838.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 380371817 is about 19503.1232626982. The cubic root of 380371817 is about 724.5518066949.

The spelling of 380371817 in words is "three hundred eighty million, three hundred seventy-one thousand, eight hundred seventeen".