380538779 has 4 divisors (see below), whose sum is σ = 380589480. Its totient is φ = 380488080.

The previous prime is 380538773. The next prime is 380538791. The reversal of 380538779 is 977835083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 977835083 = 883 ⋅1107401.

It is a cyclic number.

It is not a de Polignac number, because 380538779 - 2¹² = 380534683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380538773) 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, 11609 + ... + 29930.

It is an arithmetic number, because the mean of its divisors is an integer number (95147370).

Almost surely, 2^380538779 is an apocalyptic number.

380538779 is a deficient number, since it is larger than the sum of its proper divisors (50701).

380538779 is an equidigital number, since it uses as much as digits as its factorization.

380538779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50700.

The product of its (nonzero) digits is 1270080, while the sum is 50.

The square root of 380538779 is about 19507.4031844323. The cubic root of 380538779 is about 724.6578037900.

The spelling of 380538779 in words is "three hundred eighty million, five hundred thirty-eight thousand, seven hundred seventy-nine".