260653391 has 8 divisors (see below), whose sum is σ = 264628944. Its totient is φ = 256706560.

The previous prime is 260653387. The next prime is 260653397. The reversal of 260653391 is 193356062.

260653391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 260653391 - 2² = 260653387 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 (260653397) 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, 11471 + ... + 25551.

It is an arithmetic number, because the mean of its divisors is an integer number (33078618).

Almost surely, 2^260653391 is an apocalyptic number.

260653391 is a deficient number, since it is larger than the sum of its proper divisors (3975553).

260653391 is a wasteful number, since it uses less digits than its factorization.

260653391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14361.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 260653391 is about 16144.7635783247. The cubic root of 260653391 is about 638.7846327552.

The spelling of 260653391 in words is "two hundred sixty million, six hundred fifty-three thousand, three hundred ninety-one".