275696987 has 2 divisors, whose sum is σ = 275696988. Its totient is φ = 275696986.

The previous prime is 275696977. The next prime is 275696999. The reversal of 275696987 is 789696572.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 275696987 - 2¹² = 275692891 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (275696957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137848493 + 137848494.

It is an arithmetic number, because the mean of its divisors is an integer number (137848494).

Almost surely, 2^275696987 is an apocalyptic number.

275696987 is a deficient number, since it is larger than the sum of its proper divisors (1).

275696987 is an equidigital number, since it uses as much as digits as its factorization.

275696987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11430720, while the sum is 59.

The square root of 275696987 is about 16604.1256017895. The cubic root of 275696987 is about 650.8446510441.

The spelling of 275696987 in words is "two hundred seventy-five million, six hundred ninety-six thousand, nine hundred eighty-seven".