260390693 has 2 divisors, whose sum is σ = 260390694. Its totient is φ = 260390692.

The previous prime is 260390653. The next prime is 260390699. The reversal of 260390693 is 396093062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192460129 + 67930564 = 13873^2 + 8242^2 .

It is a cyclic number.

It is not a de Polignac number, because 260390693 - 2⁶ = 260390629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260390699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130195346 + 130195347.

It is an arithmetic number, because the mean of its divisors is an integer number (130195347).

Almost surely, 2^260390693 is an apocalyptic number.

It is an amenable number.

260390693 is a deficient number, since it is larger than the sum of its proper divisors (1).

260390693 is an equidigital number, since it uses as much as digits as its factorization.

260390693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 38.

The square root of 260390693 is about 16136.6258245025. The cubic root of 260390693 is about 638.5699621653.

The spelling of 260390693 in words is "two hundred sixty million, three hundred ninety thousand, six hundred ninety-three".