86781050 has 48 divisors (see below), whose sum is σ = 168973560. Its totient is φ = 33116160.

The previous prime is 86781043. The next prime is 86781067. The reversal of 86781050 is 5018768.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 421201 + 86359849 = 649^2 + 9293^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 86781050.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140342 + ... + 140958.

Almost surely, 2^86781050 is an apocalyptic number.

86781050 is a deficient number, since it is larger than the sum of its proper divisors (82192510).

86781050 is a wasteful number, since it uses less digits than its factorization.

86781050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755 (or 750 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 86781050 is about 9315.6347073079. The cubic root of 86781050 is about 442.7327342429.

The spelling of 86781050 in words is "eighty-six million, seven hundred eighty-one thousand, fifty".