381794437 has 2 divisors, whose sum is σ = 381794438. Its totient is φ = 381794436.

The previous prime is 381794431. The next prime is 381794459. The reversal of 381794437 is 734497183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 373494276 + 8300161 = 19326^2 + 2881^2 .

It is a cyclic number.

It is not a de Polignac number, because 381794437 - 2³ = 381794429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381794431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190897218 + 190897219.

It is an arithmetic number, because the mean of its divisors is an integer number (190897219).

Almost surely, 2^381794437 is an apocalyptic number.

It is an amenable number.

381794437 is a deficient number, since it is larger than the sum of its proper divisors (1).

381794437 is an equidigital number, since it uses as much as digits as its factorization.

381794437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 46.

The square root of 381794437 is about 19539.5608190154. The cubic root of 381794437 is about 725.4539761561.

The spelling of 381794437 in words is "three hundred eighty-one million, seven hundred ninety-four thousand, four hundred thirty-seven".