870803421 has 16 divisors (see below), whose sum is σ = 1226135040. Its totient is φ = 548201520.

The previous prime is 870803419. The next prime is 870803429. The reversal of 870803421 is 124308078.

It is not a de Polignac number, because 870803421 - 2¹ = 870803419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870803429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6835 + ... + 42288.

It is an arithmetic number, because the mean of its divisors is an integer number (76633440).

Almost surely, 2^870803421 is an apocalyptic number.

It is an amenable number.

870803421 is a deficient number, since it is larger than the sum of its proper divisors (355331619).

870803421 is a wasteful number, since it uses less digits than its factorization.

870803421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49456.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 870803421 is about 29509.3785261567. The cubic root of 870803421 is about 954.9340418432.

The spelling of 870803421 in words is "eight hundred seventy million, eight hundred three thousand, four hundred twenty-one".