383648491 has 2 divisors, whose sum is σ = 383648492. Its totient is φ = 383648490.

The previous prime is 383648471. The next prime is 383648539. The reversal of 383648491 is 194846383.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 383648491 - 2¹⁷ = 383517419 is a prime.

It is not a weakly prime, because it can be changed into another prime (383648431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191824245 + 191824246.

It is an arithmetic number, because the mean of its divisors is an integer number (191824246).

Almost surely, 2^383648491 is an apocalyptic number.

383648491 is a deficient number, since it is larger than the sum of its proper divisors (1).

383648491 is an equidigital number, since it uses as much as digits as its factorization.

383648491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 46.

The square root of 383648491 is about 19586.9469545409. The cubic root of 383648491 is about 726.6263867029.

The spelling of 383648491 in words is "three hundred eighty-three million, six hundred forty-eight thousand, four hundred ninety-one".