861483087 has 16 divisors (see below), whose sum is σ = 1317442560. Its totient is φ = 555795000.

The previous prime is 861483079. The next prime is 861483089. The reversal of 861483087 is 780384168.

861483087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 861483087 - 2³ = 861483079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861483089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 513789 + ... + 515462.

It is an arithmetic number, because the mean of its divisors is an integer number (82340160).

Almost surely, 2^861483087 is an apocalyptic number.

861483087 is a deficient number, since it is larger than the sum of its proper divisors (455959473).

861483087 is a wasteful number, since it uses less digits than its factorization.

861483087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029291 (or 1029285 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 861483087 is about 29351.0321283596. The cubic root of 861483087 is about 951.5148820502.

The spelling of 861483087 in words is "eight hundred sixty-one million, four hundred eighty-three thousand, eighty-seven".