870434797 has 8 divisors (see below), whose sum is σ = 922413240. Its totient is φ = 819920640.

The previous prime is 870434753. The next prime is 870434837. The reversal of 870434797 is 797434078.

It can be written as a sum of positive squares in 4 ways, for example, as 715716 + 869719081 = 846^2 + 29491^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-870434797 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 870434797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870434297) 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, 364848 + ... + 367225.

It is an arithmetic number, because the mean of its divisors is an integer number (115301655).

Almost surely, 2^870434797 is an apocalyptic number.

It is an amenable number.

870434797 is a deficient number, since it is larger than the sum of its proper divisors (51978443).

870434797 is a wasteful number, since it uses less digits than its factorization.

870434797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732143.

The product of its (nonzero) digits is 1185408, while the sum is 49.

The square root of 870434797 is about 29503.1319862824. The cubic root of 870434797 is about 954.7992769123.

The spelling of 870434797 in words is "eight hundred seventy million, four hundred thirty-four thousand, seven hundred ninety-seven".