1180867487 has 4 divisors (see below), whose sum is σ = 1182123336. Its totient is φ = 1179611640.

The previous prime is 1180867483. The next prime is 1180867489. The reversal of 1180867487 is 7847680811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1180867487 - 2² = 1180867483 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 (1180867483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 626513 + ... + 628394.

It is an arithmetic number, because the mean of its divisors is an integer number (295530834).

Almost surely, 2^1180867487 is an apocalyptic number.

1180867487 is a deficient number, since it is larger than the sum of its proper divisors (1255849).

1180867487 is an equidigital number, since it uses as much as digits as its factorization.

1180867487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255848.

The product of its (nonzero) digits is 602112, while the sum is 50.

The square root of 1180867487 is about 34363.7525162780. The cubic root of 1180867487 is about 1056.9806944910.

The spelling of 1180867487 in words is "one billion, one hundred eighty million, eight hundred sixty-seven thousand, four hundred eighty-seven".