203197668 has 24 divisors (see below), whose sum is σ = 502018272. Its totient is φ = 63748224.

The previous prime is 203197633. The next prime is 203197703. The reversal of 203197668 is 866791302.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (203197633) and next prime (203197703).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 497830 + ... + 498237.

It is an arithmetic number, because the mean of its divisors is an integer number (20917428).

Almost surely, 2^203197668 is an apocalyptic number.

It is an amenable number.

203197668 is an abundant number, since it is smaller than the sum of its proper divisors (298820604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203197668 is a wasteful number, since it uses less digits than its factorization.

203197668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996091 (or 996089 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 203197668 is about 14254.7419478572. The cubic root of 203197668 is about 587.9037627680.

It can be divided in two parts, 2031 and 97668, that added together give a palindrome (99699).

The spelling of 203197668 in words is "two hundred three million, one hundred ninety-seven thousand, six hundred sixty-eight".