870687069 has 16 divisors (see below), whose sum is σ = 1333056000. Its totient is φ = 495174960.

The previous prime is 870687067. The next prime is 870687073. The reversal of 870687069 is 960786078.

It is a happy number.

It is not a de Polignac number, because 870687069 - 2¹ = 870687067 is a prime.

It is a super-2 number, since 2×870687069² = 1516191944247621522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870687067) 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, 93819 + ... + 102680.

It is an arithmetic number, because the mean of its divisors is an integer number (83316000).

Almost surely, 2^870687069 is an apocalyptic number.

It is an amenable number.

870687069 is a deficient number, since it is larger than the sum of its proper divisors (462368931).

870687069 is a wasteful number, since it uses less digits than its factorization.

870687069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196720.

The product of its (nonzero) digits is 1016064, while the sum is 51.

The square root of 870687069 is about 29507.4070192554. The cubic root of 870687069 is about 954.8915089240.

Subtracting 870687069 from its reverse (960786078), we obtain a palindrome (90099009).

The spelling of 870687069 in words is "eight hundred seventy million, six hundred eighty-seven thousand, sixty-nine".