259797998 has 8 divisors (see below), whose sum is σ = 389872560. Its totient is φ = 129840480.

The previous prime is 259797977. The next prime is 259798013. The reversal of 259797998 is 899797952.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23483 + ... + 32726.

It is an arithmetic number, because the mean of its divisors is an integer number (48734070).

Almost surely, 2^259797998 is an apocalyptic number.

259797998 is a deficient number, since it is larger than the sum of its proper divisors (130074562).

259797998 is a wasteful number, since it uses less digits than its factorization.

259797998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58522.

The product of its digits is 25719120, while the sum is 65.

The square root of 259797998 is about 16118.2504633723. The cubic root of 259797998 is about 638.0850949282.

The spelling of 259797998 in words is "two hundred fifty-nine million, seven hundred ninety-seven thousand, nine hundred ninety-eight".