380171983 has 2 divisors, whose sum is σ = 380171984. Its totient is φ = 380171982.

The previous prime is 380171977. The next prime is 380172011. The reversal of 380171983 is 389171083.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 380171983 - 2⁵ = 380171951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380171903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190085991 + 190085992.

It is an arithmetic number, because the mean of its divisors is an integer number (190085992).

Almost surely, 2^380171983 is an apocalyptic number.

380171983 is a deficient number, since it is larger than the sum of its proper divisors (1).

380171983 is an equidigital number, since it uses as much as digits as its factorization.

380171983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 380171983 is about 19497.9994614832. Note that the first 3 decimals coincide. The cubic root of 380171983 is about 724.4248997734.

It can be divided in two parts, 38017 and 1983, that added together give a square (40000 = 200²).

The spelling of 380171983 in words is "three hundred eighty million, one hundred seventy-one thousand, nine hundred eighty-three".