869855350 has 144 divisors (see below), whose sum is σ = 2094615936. Its totient is φ = 266112000.

The previous prime is 869855317. The next prime is 869855353. The reversal of 869855350 is 53558968.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a junction number, because it is equal to n+sod(n) for n = 869855294 and 869855303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869855353) 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 71 ways as a sum of consecutive naturals, for example, 986910 + ... + 987790.

It is an arithmetic number, because the mean of its divisors is an integer number (14545944).

Almost surely, 2^869855350 is an apocalyptic number.

869855350 is an abundant number, since it is smaller than the sum of its proper divisors (1224760586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

869855350 is a wasteful number, since it uses less digits than its factorization.

869855350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951 (or 939 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 49.

The square root of 869855350 is about 29493.3102584298. The cubic root of 869855350 is about 954.5873604498.

The spelling of 869855350 in words is "eight hundred sixty-nine million, eight hundred fifty-five thousand, three hundred fifty".