201669998 has 4 divisors (see below), whose sum is σ = 302505000. Its totient is φ = 100834998.

The previous prime is 201669977. The next prime is 201670039. The reversal of 201669998 is 899966102.

201669998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50417498 + ... + 50417501.

It is an arithmetic number, because the mean of its divisors is an integer number (75626250).

Almost surely, 2^201669998 is an apocalyptic number.

201669998 is a deficient number, since it is larger than the sum of its proper divisors (100835002).

201669998 is a wasteful number, since it uses less digits than its factorization.

201669998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100835001.

The product of its (nonzero) digits is 419904, while the sum is 50.

The square root of 201669998 is about 14201.0562283233. The cubic root of 201669998 is about 586.4267393709.

The spelling of 201669998 in words is "two hundred one million, six hundred sixty-nine thousand, nine hundred ninety-eight".