384854399 has 2 divisors, whose sum is σ = 384854400. Its totient is φ = 384854398.

The previous prime is 384854369. The next prime is 384854411. The reversal of 384854399 is 993458483.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 384854399 - 2¹² = 384850303 is a prime.

It is a super-2 number, since 2×384854399² = 296225816859302402, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 384854399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (384854369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192427199 + 192427200.

It is an arithmetic number, because the mean of its divisors is an integer number (192427200).

Almost surely, 2^384854399 is an apocalyptic number.

384854399 is a deficient number, since it is larger than the sum of its proper divisors (1).

384854399 is an equidigital number, since it uses as much as digits as its factorization.

384854399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3732480, while the sum is 53.

The square root of 384854399 is about 19617.7062624559. The cubic root of 384854399 is about 727.3869162885.

The spelling of 384854399 in words is "three hundred eighty-four million, eight hundred fifty-four thousand, three hundred ninety-nine".