338399693 has 4 divisors (see below), whose sum is σ = 338461440. Its totient is φ = 338337948.

The previous prime is 338399651. The next prime is 338399707. The reversal of 338399693 is 396993833.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 338399693 - 2⁶ = 338399629 is a prime.

It is a super-2 number, since 2×338399693² = 229028704444988498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338399623) 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, 21755 + ... + 33912.

It is an arithmetic number, because the mean of its divisors is an integer number (84615360).

Almost surely, 2^338399693 is an apocalyptic number.

It is an amenable number.

338399693 is a deficient number, since it is larger than the sum of its proper divisors (61747).

338399693 is an equidigital number, since it uses as much as digits as its factorization.

338399693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61746.

The product of its digits is 2834352, while the sum is 53.

The square root of 338399693 is about 18395.6433157419. The cubic root of 338399693 is about 696.8564435204.

The spelling of 338399693 in words is "three hundred thirty-eight million, three hundred ninety-nine thousand, six hundred ninety-three".