878340093 has 4 divisors (see below), whose sum is σ = 1171120128. Its totient is φ = 585560060.

The previous prime is 878340083. The next prime is 878340097. The reversal of 878340093 is 390043878.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 878340093 - 2¹³ = 878331901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878340097) 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 3 ways as a sum of consecutive naturals, for example, 146390013 + ... + 146390018.

It is an arithmetic number, because the mean of its divisors is an integer number (292780032).

Almost surely, 2^878340093 is an apocalyptic number.

It is an amenable number.

878340093 is a deficient number, since it is larger than the sum of its proper divisors (292780035).

878340093 is a wasteful number, since it uses less digits than its factorization.

878340093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292780034.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 878340093 is about 29636.8030158450. The cubic root of 878340093 is about 957.6810685888.

The spelling of 878340093 in words is "eight hundred seventy-eight million, three hundred forty thousand, ninety-three".