381792493 has 2 divisors, whose sum is σ = 381792494. Its totient is φ = 381792492.

The previous prime is 381792491. The next prime is 381792539. The reversal of 381792493 is 394297183.

It is an a-pointer prime, because the next prime (381792539) can be obtained adding 381792493 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 381733444 + 59049 = 19538^2 + 243^2 .

It is a cyclic number.

It is not a de Polignac number, because 381792493 - 2¹ = 381792491 is a prime.

It is a super-2 number, since 2×381792493² = 291531015422310098, which contains 22 as substring.

Together with 381792491, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381792491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190896246 + 190896247.

It is an arithmetic number, because the mean of its divisors is an integer number (190896247).

Almost surely, 2^381792493 is an apocalyptic number.

It is an amenable number.

381792493 is a deficient number, since it is larger than the sum of its proper divisors (1).

381792493 is an equidigital number, since it uses as much as digits as its factorization.

381792493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 46.

The square root of 381792493 is about 19539.5110737193. The cubic root of 381792493 is about 725.4527448785.

The spelling of 381792493 in words is "three hundred eighty-one million, seven hundred ninety-two thousand, four hundred ninety-three".