261833423 has 8 divisors (see below), whose sum is σ = 269153088. Its totient is φ = 254526624.

The previous prime is 261833417. The next prime is 261833437. The reversal of 261833423 is 324338162.

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

It is a cyclic number.

It is not a de Polignac number, because 261833423 - 2⁶ = 261833359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 261833423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261833483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50165 + ... + 55137.

It is an arithmetic number, because the mean of its divisors is an integer number (33644136).

Almost surely, 2^261833423 is an apocalyptic number.

261833423 is a deficient number, since it is larger than the sum of its proper divisors (7319665).

261833423 is a wasteful number, since it uses less digits than its factorization.

261833423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6433.

The product of its digits is 20736, while the sum is 32.

The square root of 261833423 is about 16181.2676573870. The cubic root of 261833423 is about 639.7471519095.

The spelling of 261833423 in words is "two hundred sixty-one million, eight hundred thirty-three thousand, four hundred twenty-three".