260477663 has 2 divisors, whose sum is σ = 260477664. Its totient is φ = 260477662.

The previous prime is 260477647. The next prime is 260477677. The reversal of 260477663 is 366774062.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 260477663 - 2⁴ = 260477647 is a prime.

It is a super-2 number, since 2×260477663² = 135697225843883138, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 260477663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260477683) 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 as a sum of consecutive naturals, namely, 130238831 + 130238832.

It is an arithmetic number, because the mean of its divisors is an integer number (130238832).

Almost surely, 2^260477663 is an apocalyptic number.

260477663 is a deficient number, since it is larger than the sum of its proper divisors (1).

260477663 is an equidigital number, since it uses as much as digits as its factorization.

260477663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 41.

The square root of 260477663 is about 16139.3204008099. The cubic root of 260477663 is about 638.6410479724.

The spelling of 260477663 in words is "two hundred sixty million, four hundred seventy-seven thousand, six hundred sixty-three".