850869954 has 32 divisors (see below), whose sum is σ = 2062716480. Its totient is φ = 257839200.

The previous prime is 850869953. The next prime is 850869977. The reversal of 850869954 is 459968058.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 850869954.

It is not an unprimeable number, because it can be changed into a prime (850869953) 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 15 ways as a sum of consecutive naturals, for example, 715627 + ... + 716814.

It is an arithmetic number, because the mean of its divisors is an integer number (64459890).

Almost surely, 2^850869954 is an apocalyptic number.

850869954 is an abundant number, since it is smaller than the sum of its proper divisors (1211846526).

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

850869954 is a wasteful number, since it uses less digits than its factorization.

850869954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432463 (or 1432457 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 54.

The square root of 850869954 is about 29169.6752467353. The cubic root of 850869954 is about 947.5912955428.

The spelling of 850869954 in words is "eight hundred fifty million, eight hundred sixty-nine thousand, nine hundred fifty-four".