870485069 has 4 divisors (see below), whose sum is σ = 882409596. Its totient is φ = 858560544.

The previous prime is 870485039. The next prime is 870485089. The reversal of 870485069 is 960584078.

870485069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 675324169 + 195160900 = 25987^2 + 13970^2 .

It is a cyclic number.

It is not a de Polignac number, because 870485069 - 2¹² = 870480973 is a prime.

It is a super-2 number, since 2×870485069² = 1515488510703869522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870485039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5962154 + ... + 5962299.

It is an arithmetic number, because the mean of its divisors is an integer number (220602399).

Almost surely, 2^870485069 is an apocalyptic number.

It is an amenable number.

870485069 is a deficient number, since it is larger than the sum of its proper divisors (11924527).

870485069 is a wasteful number, since it uses less digits than its factorization.

870485069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11924526.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 870485069 is about 29503.9839513243. The cubic root of 870485069 is about 954.8176580499.

Subtracting 870485069 from its reverse (960584078), we obtain a palindrome (90099009).

The spelling of 870485069 in words is "eight hundred seventy million, four hundred eighty-five thousand, sixty-nine".