869999995 has 16 divisors (see below), whose sum is σ = 1070547552. Its totient is φ = 678504960.

The previous prime is 869999993. The next prime is 870000049. The reversal of 869999995 is 599999968.

It is not a de Polignac number, because 869999995 - 2¹ = 869999993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (869999993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21844 + ... + 47086.

It is an arithmetic number, because the mean of its divisors is an integer number (66909222).

Almost surely, 2^869999995 is an apocalyptic number.

869999995 is a deficient number, since it is larger than the sum of its proper divisors (200547557).

869999995 is a wasteful number, since it uses less digits than its factorization.

869999995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25422.

The product of its digits is 127545840, while the sum is 73.

The square root of 869999995 is about 29495.7623227473. The cubic root of 869999995 is about 954.6402691072.

The spelling of 869999995 in words is "eight hundred sixty-nine million, nine hundred ninety-nine thousand, nine hundred ninety-five".