385782379 has 2 divisors, whose sum is σ = 385782380. Its totient is φ = 385782378.

The previous prime is 385782323. The next prime is 385782421. The reversal of 385782379 is 973287583.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 385782379 - 2²³ = 377393771 is a prime.

It is not a weakly prime, because it can be changed into another prime (385702379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192891189 + 192891190.

It is an arithmetic number, because the mean of its divisors is an integer number (192891190).

Almost surely, 2^385782379 is an apocalyptic number.

385782379 is a deficient number, since it is larger than the sum of its proper divisors (1).

385782379 is an equidigital number, since it uses as much as digits as its factorization.

385782379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2540160, while the sum is 52.

The square root of 385782379 is about 19641.3436149363. The cubic root of 385782379 is about 727.9710841421.

The spelling of 385782379 in words is "three hundred eighty-five million, seven hundred eighty-two thousand, three hundred seventy-nine".