260658491 has 4 divisors (see below), whose sum is σ = 260791272. Its totient is φ = 260525712.

The previous prime is 260658479. The next prime is 260658521. The reversal of 260658491 is 194856062.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 260658491 - 2⁶ = 260658427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260558491) 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, 63401 + ... + 67386.

It is an arithmetic number, because the mean of its divisors is an integer number (65197818).

Almost surely, 2^260658491 is an apocalyptic number.

260658491 is a deficient number, since it is larger than the sum of its proper divisors (132781).

260658491 is a wasteful number, since it uses less digits than its factorization.

260658491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132780.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 260658491 is about 16144.9215235008. The cubic root of 260658491 is about 638.7887989269.

The spelling of 260658491 in words is "two hundred sixty million, six hundred fifty-eight thousand, four hundred ninety-one".