381779603 has 2 divisors, whose sum is σ = 381779604. Its totient is φ = 381779602.

The previous prime is 381779581. The next prime is 381779611. The reversal of 381779603 is 306977183.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 381779603 - 2⁸ = 381779347 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (381779623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190889801 + 190889802.

It is an arithmetic number, because the mean of its divisors is an integer number (190889802).

Almost surely, 2^381779603 is an apocalyptic number.

381779603 is a deficient number, since it is larger than the sum of its proper divisors (1).

381779603 is an equidigital number, since it uses as much as digits as its factorization.

381779603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 381779603 is about 19539.1812264486. The cubic root of 381779603 is about 725.4445805909. Note that the first 3 decimals are identical.

The spelling of 381779603 in words is "three hundred eighty-one million, seven hundred seventy-nine thousand, six hundred three".