233198649 has 8 divisors (see below), whose sum is σ = 345479520. Its totient is φ = 155465748.

The previous prime is 233198629. The next prime is 233198653. The reversal of 233198649 is 946891332.

It is a happy number.

It is not a de Polignac number, because 233198649 - 2⁵ = 233198617 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (233198629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4318467 + ... + 4318520.

It is an arithmetic number, because the mean of its divisors is an integer number (43184940).

Almost surely, 2^233198649 is an apocalyptic number.

It is an amenable number.

233198649 is a deficient number, since it is larger than the sum of its proper divisors (112280871).

233198649 is an equidigital number, since it uses as much as digits as its factorization.

233198649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8636996 (or 8636990 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 233198649 is about 15270.8431004971. The cubic root of 233198649 is about 615.5197747405.

The spelling of 233198649 in words is "two hundred thirty-three million, one hundred ninety-eight thousand, six hundred forty-nine".