381794429 has 2 divisors, whose sum is σ = 381794430. Its totient is φ = 381794428.

The previous prime is 381794393. The next prime is 381794431. The reversal of 381794429 is 924497183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 273009529 + 108784900 = 16523^2 + 10430^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-381794429 is a prime.

Together with 381794431, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381794459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190897214 + 190897215.

It is an arithmetic number, because the mean of its divisors is an integer number (190897215).

Almost surely, 2^381794429 is an apocalyptic number.

It is an amenable number.

381794429 is a deficient number, since it is larger than the sum of its proper divisors (1).

381794429 is an equidigital number, since it uses as much as digits as its factorization.

381794429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 47.

The square root of 381794429 is about 19539.5606143025. The cubic root of 381794429 is about 725.4539710892.

The spelling of 381794429 in words is "three hundred eighty-one million, seven hundred ninety-four thousand, four hundred twenty-nine".