333996385 has 4 divisors (see below), whose sum is σ = 400795668. Its totient is φ = 267197104.

The previous prime is 333996379. The next prime is 333996419. The reversal of 333996385 is 583699333.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 583699333 = 7 ⋅83385619.

It can be written as a sum of positive squares in 2 ways, for example, as 50680161 + 283316224 = 7119^2 + 16832^2 .

It is a cyclic number.

It is not a de Polignac number, because 333996385 - 2²¹ = 331899233 is a prime.

It is a super-2 number, since 2×333996385² = 223107170386136450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33399634 + ... + 33399643.

It is an arithmetic number, because the mean of its divisors is an integer number (100198917).

Almost surely, 2^333996385 is an apocalyptic number.

It is an amenable number.

333996385 is a deficient number, since it is larger than the sum of its proper divisors (66799283).

333996385 is an equidigital number, since it uses as much as digits as its factorization.

333996385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66799282.

The product of its digits is 1574640, while the sum is 49.

The square root of 333996385 is about 18275.5679802298. The cubic root of 333996385 is about 693.8207042080.

The spelling of 333996385 in words is "three hundred thirty-three million, nine hundred ninety-six thousand, three hundred eighty-five".