200198407 has 4 divisors (see below), whose sum is σ = 202610520. Its totient is φ = 197786296.

The previous prime is 200198357. The next prime is 200198413. The reversal of 200198407 is 704891002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 200198407 - 2¹⁵ = 200165639 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200198807) 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, 1205932 + ... + 1206097.

It is an arithmetic number, because the mean of its divisors is an integer number (50652630).

Almost surely, 2^200198407 is an apocalyptic number.

200198407 is a deficient number, since it is larger than the sum of its proper divisors (2412113).

200198407 is an equidigital number, since it uses as much as digits as its factorization.

200198407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412112.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 200198407 is about 14149.1486316315. The cubic root of 200198407 is about 584.9968655931.

The spelling of 200198407 in words is "two hundred million, one hundred ninety-eight thousand, four hundred seven".