869617487 has 8 divisors (see below), whose sum is σ = 907758720. Its totient is φ = 832106880.

The previous prime is 869617471. The next prime is 869617559. The reversal of 869617487 is 784716968.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 869617487 - 2⁴ = 869617471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869617447) 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 7 ways as a sum of consecutive naturals, for example, 154838 + ... + 160355.

It is an arithmetic number, because the mean of its divisors is an integer number (113469840).

Almost surely, 2^869617487 is an apocalyptic number.

869617487 is a deficient number, since it is larger than the sum of its proper divisors (38141233).

869617487 is a wasteful number, since it uses less digits than its factorization.

869617487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315313.

The product of its digits is 4064256, while the sum is 56.

The square root of 869617487 is about 29489.2774919970. The cubic root of 869617487 is about 954.5003414939.

The spelling of 869617487 in words is "eight hundred sixty-nine million, six hundred seventeen thousand, four hundred eighty-seven".