338361997 has 4 divisors (see below), whose sum is σ = 338458816. Its totient is φ = 338265180.

The previous prime is 338361983. The next prime is 338362021. The reversal of 338361997 is 799163833.

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, and also an emirpimes, since its reverse is a distinct semiprime: 799163833 = 13 ⋅61474141.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-338361997 is a prime.

It is a super-2 number, since 2×338361997² = 228977682027656018, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 338361997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338361917) 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, 42963 + ... + 50224.

It is an arithmetic number, because the mean of its divisors is an integer number (84614704).

Almost surely, 2^338361997 is an apocalyptic number.

It is an amenable number.

338361997 is a deficient number, since it is larger than the sum of its proper divisors (96819).

338361997 is an equidigital number, since it uses as much as digits as its factorization.

338361997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96818.

The product of its digits is 734832, while the sum is 49.

The square root of 338361997 is about 18394.6186967819. The cubic root of 338361997 is about 696.8305671416.

The spelling of 338361997 in words is "three hundred thirty-eight million, three hundred sixty-one thousand, nine hundred ninety-seven".