1165607887 has 2 divisors, whose sum is σ = 1165607888. Its totient is φ = 1165607886.

The previous prime is 1165607857. The next prime is 1165607893. The reversal of 1165607887 is 7887065611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1165607887 - 2¹⁹ = 1165083599 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1165607887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1165607857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582803943 + 582803944.

It is an arithmetic number, because the mean of its divisors is an integer number (582803944).

Almost surely, 2^1165607887 is an apocalyptic number.

1165607887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1165607887 is an equidigital number, since it uses as much as digits as its factorization.

1165607887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 564480, while the sum is 49.

The square root of 1165607887 is about 34141.0000878709. Note that the first 4 decimals coincide. The cubic root of 1165607887 is about 1052.4080445048.

The spelling of 1165607887 in words is "one billion, one hundred sixty-five million, six hundred seven thousand, eight hundred eighty-seven".