199463806 has 4 divisors (see below), whose sum is σ = 299195712. Its totient is φ = 99731902.

The previous prime is 199463801. The next prime is 199463819. The reversal of 199463806 is 608364991.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199463801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49865950 + ... + 49865953.

It is an arithmetic number, because the mean of its divisors is an integer number (74798928).

Almost surely, 2^199463806 is an apocalyptic number.

199463806 is a deficient number, since it is larger than the sum of its proper divisors (99731906).

199463806 is an equidigital number, since it uses as much as digits as its factorization.

199463806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99731905.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 199463806 is about 14123.1655799966. The cubic root of 199463806 is about 584.2804663196.

The spelling of 199463806 in words is "one hundred ninety-nine million, four hundred sixty-three thousand, eight hundred six".