382640899 has 2 divisors, whose sum is σ = 382640900. Its totient is φ = 382640898.

The previous prime is 382640897. The next prime is 382640911. The reversal of 382640899 is 998046283.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 382640899 - 2¹ = 382640897 is a prime.

Together with 382640897, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (382640897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191320449 + 191320450.

It is an arithmetic number, because the mean of its divisors is an integer number (191320450).

Almost surely, 2^382640899 is an apocalyptic number.

382640899 is a deficient number, since it is larger than the sum of its proper divisors (1).

382640899 is an equidigital number, since it uses as much as digits as its factorization.

382640899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 382640899 is about 19561.2090372758. The cubic root of 382640899 is about 725.9897059559.

The spelling of 382640899 in words is "three hundred eighty-two million, six hundred forty thousand, eight hundred ninety-nine".