870706838 has 16 divisors (see below), whose sum is σ = 1313625600. Its totient is φ = 432839616.

The previous prime is 870706831. The next prime is 870706853. The reversal of 870706838 is 838607078.

It is a junction number, because it is equal to n+sod(n) for n = 870706792 and 870706801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870706831) 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, 265706 + ... + 268962.

It is an arithmetic number, because the mean of its divisors is an integer number (82101600).

Almost surely, 2^870706838 is an apocalyptic number.

870706838 is a deficient number, since it is larger than the sum of its proper divisors (442918762).

870706838 is a wasteful number, since it uses less digits than its factorization.

870706838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3991.

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 870706838 is about 29507.7420010410. The cubic root of 870706838 is about 954.8987358249.

The spelling of 870706838 in words is "eight hundred seventy million, seven hundred six thousand, eight hundred thirty-eight".