260974487 has 4 divisors (see below), whose sum is σ = 264650256. Its totient is φ = 257298720.

The previous prime is 260974477. The next prime is 260974507. The reversal of 260974487 is 784479062.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 784479062 = 2 ⋅392239531.

It is a cyclic number.

It is not a de Polignac number, because 260974487 - 2⁶ = 260974423 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 (260974457) 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 3 ways as a sum of consecutive naturals, for example, 1837778 + ... + 1837919.

It is an arithmetic number, because the mean of its divisors is an integer number (66162564).

Almost surely, 2^260974487 is an apocalyptic number.

260974487 is a deficient number, since it is larger than the sum of its proper divisors (3675769).

260974487 is an equidigital number, since it uses as much as digits as its factorization.

260974487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3675768.

The product of its (nonzero) digits is 677376, while the sum is 47.

The square root of 260974487 is about 16154.7047945792. The cubic root of 260974487 is about 639.0468290030.

The spelling of 260974487 in words is "two hundred sixty million, nine hundred seventy-four thousand, four hundred eighty-seven".