870784669 has 8 divisors (see below), whose sum is σ = 910990080. Its totient is φ = 830774736.

The previous prime is 870784657. The next prime is 870784721. The reversal of 870784669 is 966487078.

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 870784669 - 2¹³ = 870776477 is a prime.

It is a super-2 number, since 2×870784669² = 1516531879530879122, 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 (870784169) 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, 39717 + ... + 57610.

It is an arithmetic number, because the mean of its divisors is an integer number (113873760).

Almost surely, 2^870784669 is an apocalyptic number.

It is an amenable number.

870784669 is a deficient number, since it is larger than the sum of its proper divisors (40205411).

870784669 is a wasteful number, since it uses less digits than its factorization.

870784669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97739.

The product of its (nonzero) digits is 4064256, while the sum is 55.

The square root of 870784669 is about 29509.0607949491. The cubic root of 870784669 is about 954.9271872339.

The spelling of 870784669 in words is "eight hundred seventy million, seven hundred eighty-four thousand, six hundred sixty-nine".