868290550 has 12 divisors (see below), whose sum is σ = 1615020516. Its totient is φ = 347316200.

The previous prime is 868290547. The next prime is 868290569. The reversal of 868290550 is 55092868.

It is a junction number, because it is equal to n+sod(n) for n = 868290497 and 868290506.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 8682856 + ... + 8682955.

It is an arithmetic number, because the mean of its divisors is an integer number (134585043).

Almost surely, 2^868290550 is an apocalyptic number.

868290550 is a deficient number, since it is larger than the sum of its proper divisors (746729966).

868290550 is a wasteful number, since it uses less digits than its factorization.

868290550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17365823 (or 17365818 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 43.

The square root of 868290550 is about 29466.7702675404. The cubic root of 868290550 is about 954.0146081706.

The spelling of 868290550 in words is "eight hundred sixty-eight million, two hundred ninety thousand, five hundred fifty".