869248642 has 8 divisors (see below), whose sum is σ = 1309068432. Its totient is φ = 432892500.

The previous prime is 869248631. The next prime is 869248643. The reversal of 869248642 is 246842968.

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

It is not an unprimeable number, because it can be changed into a prime (869248643) 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 3 ways as a sum of consecutive naturals, for example, 865284 + ... + 866287.

It is an arithmetic number, because the mean of its divisors is an integer number (163633554).

Almost surely, 2^869248642 is an apocalyptic number.

869248642 is a deficient number, since it is larger than the sum of its proper divisors (439819790).

869248642 is a wasteful number, since it uses less digits than its factorization.

869248642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731824.

The product of its digits is 1327104, while the sum is 49.

The square root of 869248642 is about 29483.0229454172. The cubic root of 869248642 is about 954.3653731617.

The spelling of 869248642 in words is "eight hundred sixty-nine million, two hundred forty-eight thousand, six hundred forty-two".