260983817 has 2 divisors, whose sum is σ = 260983818. Its totient is φ = 260983816.

The previous prime is 260983771. The next prime is 260983831. The reversal of 260983817 is 718389062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 246207481 + 14776336 = 15691^2 + 3844^2 .

It is a cyclic number.

It is not a de Polignac number, because 260983817 - 2⁸ = 260983561 is a prime.

It is a super-2 number, since 2×260983817² = 136225105471778978, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (260983837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130491908 + 130491909.

It is an arithmetic number, because the mean of its divisors is an integer number (130491909).

Almost surely, 2^260983817 is an apocalyptic number.

It is an amenable number.

260983817 is a deficient number, since it is larger than the sum of its proper divisors (1).

260983817 is an equidigital number, since it uses as much as digits as its factorization.

260983817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 260983817 is about 16154.9935623633. The cubic root of 260983817 is about 639.0544443526.

The spelling of 260983817 in words is "two hundred sixty million, nine hundred eighty-three thousand, eight hundred seventeen".