381498847 has 2 divisors, whose sum is σ = 381498848. Its totient is φ = 381498846.

The previous prime is 381498797. The next prime is 381498863. The reversal of 381498847 is 748894183.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 381498847 - 2¹¹ = 381496799 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 381498794 and 381498803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381498877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190749423 + 190749424.

It is an arithmetic number, because the mean of its divisors is an integer number (190749424).

Almost surely, 2^381498847 is an apocalyptic number.

381498847 is a deficient number, since it is larger than the sum of its proper divisors (1).

381498847 is an equidigital number, since it uses as much as digits as its factorization.

381498847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1548288, while the sum is 52.

The square root of 381498847 is about 19531.9954689735. The cubic root of 381498847 is about 725.2667093237.

The spelling of 381498847 in words is "three hundred eighty-one million, four hundred ninety-eight thousand, eight hundred forty-seven".