819079873 has 16 divisors (see below), whose sum is σ = 915045120. Its totient is φ = 728614656.

The previous prime is 819079853. The next prime is 819079897. The reversal of 819079873 is 378970918.

It is a cyclic number.

It is not a de Polignac number, because 819079873 - 2²⁹ = 282208961 is a prime.

It is a super-2 number, since 2×819079873² = 1341783676707392258, which contains 22 as substring.

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 819079873.

It is not an unprimeable number, because it can be changed into a prime (819079813) 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, 146811 + ... + 152287.

It is an arithmetic number, because the mean of its divisors is an integer number (57190320).

Almost surely, 2^819079873 is an apocalyptic number.

It is an amenable number.

819079873 is a deficient number, since it is larger than the sum of its proper divisors (95965247).

819079873 is a wasteful number, since it uses less digits than its factorization.

819079873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5976.

The product of its (nonzero) digits is 762048, while the sum is 52.

The square root of 819079873 is about 28619.5715027322. The cubic root of 819079873 is about 935.6399378623.

The spelling of 819079873 in words is "eight hundred nineteen million, seventy-nine thousand, eight hundred seventy-three".