1167236487 has 20 divisors (see below), whose sum is σ = 1746772456. Its totient is φ = 776764080.

The previous prime is 1167236449. The next prime is 1167236489. The reversal of 1167236487 is 7846327611.

1167236487 is a `hidden beast` number, since 1 + 167 + 2 + 3 + 6 + 487 = 666.

It is not a de Polignac number, because 1167236487 - 2⁶ = 1167236423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1167236489) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 33633 + ... + 58869.

Almost surely, 2^1167236487 is an apocalyptic number.

1167236487 is a deficient number, since it is larger than the sum of its proper divisors (579535969).

1167236487 is an equidigital number, since it uses as much as digits as its factorization.

1167236487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25820 (or 25811 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 1167236487 is about 34164.8428505094. The cubic root of 1167236487 is about 1052.8979617199.

The spelling of 1167236487 in words is "one billion, one hundred sixty-seven million, two hundred thirty-six thousand, four hundred eighty-seven".