381774713 has 2 divisors, whose sum is σ = 381774714. Its totient is φ = 381774712.

The previous prime is 381774709. The next prime is 381774719. The reversal of 381774713 is 317477183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 322669369 + 59105344 = 17963^2 + 7688^2 .

It is an emirp because it is prime and its reverse (317477183) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 381774713 - 2² = 381774709 is a prime.

It is not a weakly prime, because it can be changed into another prime (381774719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190887356 + 190887357.

It is an arithmetic number, because the mean of its divisors is an integer number (190887357).

Almost surely, 2^381774713 is an apocalyptic number.

It is an amenable number.

381774713 is a deficient number, since it is larger than the sum of its proper divisors (1).

381774713 is an equidigital number, since it uses as much as digits as its factorization.

381774713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 98784, while the sum is 41.

The square root of 381774713 is about 19539.0560928618. The cubic root of 381774713 is about 725.4414833072.

The spelling of 381774713 in words is "three hundred eighty-one million, seven hundred seventy-four thousand, seven hundred thirteen".