850869955 has 16 divisors (see below), whose sum is σ = 1110481344. Its totient is φ = 622108800.

The previous prime is 850869953. The next prime is 850869977. The reversal of 850869955 is 559968058.

It is not a de Polignac number, because 850869955 - 2¹ = 850869953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 850869896 and 850869905.

It is not an unprimeable number, because it can be changed into a prime (850869953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58239 + ... + 71368.

It is an arithmetic number, because the mean of its divisors is an integer number (69405084).

Almost surely, 2^850869955 is an apocalyptic number.

850869955 is a deficient number, since it is larger than the sum of its proper divisors (259611389).

850869955 is a wasteful number, since it uses less digits than its factorization.

850869955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129726.

The product of its (nonzero) digits is 3888000, while the sum is 55.

The square root of 850869955 is about 29169.6752638764. The cubic root of 850869955 is about 947.5912959140.

The spelling of 850869955 in words is "eight hundred fifty million, eight hundred sixty-nine thousand, nine hundred fifty-five".