2685634087 has 2 divisors, whose sum is σ = 2685634088. Its totient is φ = 2685634086.

The previous prime is 2685634079. The next prime is 2685634099. The reversal of 2685634087 is 7804365862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2685634087 - 2³ = 2685634079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2685634087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2685634027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1342817043 + 1342817044.

It is an arithmetic number, because the mean of its divisors is an integer number (1342817044).

Almost surely, 2^2685634087 is an apocalyptic number.

2685634087 is a deficient number, since it is larger than the sum of its proper divisors (1).

2685634087 is an equidigital number, since it uses as much as digits as its factorization.

2685634087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1935360, while the sum is 49.

The square root of 2685634087 is about 51823.1037955080. The cubic root of 2685634087 is about 1390.0026028625.

The spelling of 2685634087 in words is "two billion, six hundred eighty-five million, six hundred thirty-four thousand, eighty-seven".