866352850 has 24 divisors (see below), whose sum is σ = 1757909808. Its totient is φ = 315037200.

The previous prime is 866352829. The next prime is 866352859. The reversal of 866352850 is 58253668.

It is a happy number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 866352797 and 866352806.

It is not an unprimeable number, because it can be changed into a prime (866352859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 787044 + ... + 788143.

It is an arithmetic number, because the mean of its divisors is an integer number (73246242).

Almost surely, 2^866352850 is an apocalyptic number.

866352850 is an abundant number, since it is smaller than the sum of its proper divisors (891556958).

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

866352850 is a wasteful number, since it uses less digits than its factorization.

866352850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575210 (or 1575205 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 43.

The square root of 866352850 is about 29433.8724941181. The cubic root of 866352850 is about 953.3044115905.

The spelling of 866352850 in words is "eight hundred sixty-six million, three hundred fifty-two thousand, eight hundred fifty".