381038747 has 2 divisors, whose sum is σ = 381038748. Its totient is φ = 381038746.

The previous prime is 381038741. The next prime is 381038771. The reversal of 381038747 is 747830183.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 381038747 - 2¹⁴ = 381022363 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (381038741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190519373 + 190519374.

It is an arithmetic number, because the mean of its divisors is an integer number (190519374).

Almost surely, 2^381038747 is an apocalyptic number.

381038747 is a deficient number, since it is larger than the sum of its proper divisors (1).

381038747 is an equidigital number, since it uses as much as digits as its factorization.

381038747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 381038747 is about 19520.2138051815. The cubic root of 381038747 is about 724.9750269638.

The spelling of 381038747 in words is "three hundred eighty-one million, thirty-eight thousand, seven hundred forty-seven".