260597491 has 8 divisors (see below), whose sum is σ = 324900864. Its totient is φ = 203062920.

The previous prime is 260597459. The next prime is 260597497. The reversal of 260597491 is 194795062.

It is a happy number.

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 260597491 - 2⁵ = 260597459 is a prime.

It is a super-2 number, since 2×260597491² = 135822104630990162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260597497) 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, 1692115 + ... + 1692268.

It is an arithmetic number, because the mean of its divisors is an integer number (40612608).

Almost surely, 2^260597491 is an apocalyptic number.

260597491 is a deficient number, since it is larger than the sum of its proper divisors (64303373).

260597491 is a wasteful number, since it uses less digits than its factorization.

260597491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3384401.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 260597491 is about 16143.0322740184. The cubic root of 260597491 is about 638.7389646826.

The spelling of 260597491 in words is "two hundred sixty million, five hundred ninety-seven thousand, four hundred ninety-one".