260447963 has 4 divisors (see below), whose sum is σ = 262976688. Its totient is φ = 257919240.

The previous prime is 260447933. The next prime is 260447969. The reversal of 260447963 is 369744062.

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 260447963 - 2⁶ = 260447899 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 260447963.

It is not an unprimeable number, because it can be changed into a prime (260447969) 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, 1264208 + ... + 1264413.

It is an arithmetic number, because the mean of its divisors is an integer number (65744172).

Almost surely, 2^260447963 is an apocalyptic number.

260447963 is a deficient number, since it is larger than the sum of its proper divisors (2528725).

260447963 is a wasteful number, since it uses less digits than its factorization.

260447963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2528724.

The product of its (nonzero) digits is 217728, while the sum is 41.

The square root of 260447963 is about 16138.4002614881. The cubic root of 260447963 is about 638.6167741570.

The spelling of 260447963 in words is "two hundred sixty million, four hundred forty-seven thousand, nine hundred sixty-three".