288198901 has 4 divisors (see below), whose sum is σ = 300729312. Its totient is φ = 275668492.

The previous prime is 288198871. The next prime is 288198907. The reversal of 288198901 is 109891882.

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.

It is a cyclic number.

It is not a de Polignac number, because 288198901 - 2²⁵ = 254644469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288198907) 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, 6265171 + ... + 6265216.

It is an arithmetic number, because the mean of its divisors is an integer number (75182328).

Almost surely, 2^288198901 is an apocalyptic number.

It is an amenable number.

288198901 is a deficient number, since it is larger than the sum of its proper divisors (12530411).

288198901 is a wasteful number, since it uses less digits than its factorization.

288198901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12530410.

The product of its (nonzero) digits is 82944, while the sum is 46.

The square root of 288198901 is about 16976.4219139370. The cubic root of 288198901 is about 660.5374417924.

The spelling of 288198901 in words is "two hundred eighty-eight million, one hundred ninety-eight thousand, nine hundred one".