1087780867 has 2 divisors, whose sum is σ = 1087780868. Its totient is φ = 1087780866.

The previous prime is 1087780861. The next prime is 1087780879. The reversal of 1087780867 is 7680877801.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1087780867 - 2¹⁵ = 1087748099 is a prime.

It is a super-2 number, since 2×1087780867² = 2366534429222543378, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1087780861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543890433 + 543890434.

It is an arithmetic number, because the mean of its divisors is an integer number (543890434).

Almost surely, 2^1087780867 is an apocalyptic number.

1087780867 is a deficient number, since it is larger than the sum of its proper divisors (1).

1087780867 is an equidigital number, since it uses as much as digits as its factorization.

1087780867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1053696, while the sum is 52.

The square root of 1087780867 is about 32981.5231152232. The cubic root of 1087780867 is about 1028.4435810573.

The spelling of 1087780867 in words is "one billion, eighty-seven million, seven hundred eighty thousand, eight hundred sixty-seven".