73878805 has 64 divisors (see below), whose sum is σ = 123379200. Its totient is φ = 40965120.

The previous prime is 73878803. The next prime is 73878839. The reversal of 73878805 is 50887837.

It is not a de Polignac number, because 73878805 - 2¹ = 73878803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73878803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 144891 + ... + 145399.

It is an arithmetic number, because the mean of its divisors is an integer number (1927800).

Almost surely, 2^73878805 is an apocalyptic number.

It is an amenable number.

73878805 is a deficient number, since it is larger than the sum of its proper divisors (49500395).

73878805 is a wasteful number, since it uses less digits than its factorization.

73878805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574.

The product of its (nonzero) digits is 376320, while the sum is 46.

The square root of 73878805 is about 8595.2780641466. The cubic root of 73878805 is about 419.6043231219.

It can be divided in two parts, 73 and 878805, that added together give a palindrome (878878).

The spelling of 73878805 in words is "seventy-three million, eight hundred seventy-eight thousand, eight hundred five".