382855899 has 4 divisors (see below), whose sum is σ = 510474536. Its totient is φ = 255237264.

The previous prime is 382855877. The next prime is 382855903. The reversal of 382855899 is 998558283.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 998558283 = 3 ⋅332852761.

It is not a de Polignac number, because 382855899 - 2⁷ = 382855771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (382851899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63809314 + ... + 63809319.

It is an arithmetic number, because the mean of its divisors is an integer number (127618634).

Almost surely, 2^382855899 is an apocalyptic number.

382855899 is a deficient number, since it is larger than the sum of its proper divisors (127618637).

382855899 is a wasteful number, since it uses less digits than its factorization.

382855899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127618636.

The product of its digits is 6220800, while the sum is 57.

The square root of 382855899 is about 19566.7038358534. The cubic root of 382855899 is about 726.1256546237.

Adding to 382855899 its sum of digits (57), we get a triangular number (382855956 = T₂₇₆₇₁).

The spelling of 382855899 in words is "three hundred eighty-two million, eight hundred fifty-five thousand, eight hundred ninety-nine".