73878223 has 4 divisors (see below), whose sum is σ = 74374200. Its totient is φ = 73382248.

The previous prime is 73878221. The next prime is 73878293. The reversal of 73878223 is 32287837.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32287837 = 23 ⋅1403819.

It is a cyclic number.

It is not a de Polignac number, because 73878223 - 2¹ = 73878221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73878221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247765 + ... + 248062.

It is an arithmetic number, because the mean of its divisors is an integer number (18593550).

Almost surely, 2^73878223 is an apocalyptic number.

73878223 is a deficient number, since it is larger than the sum of its proper divisors (495977).

73878223 is a wasteful number, since it uses less digits than its factorization.

73878223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495976.

The product of its digits is 112896, while the sum is 40.

The square root of 73878223 is about 8595.2442082817. The cubic root of 73878223 is about 419.6032212707.

It can be divided in two parts, 738 and 78223, that added together give a square (78961 = 281²).

The spelling of 73878223 in words is "seventy-three million, eight hundred seventy-eight thousand, two hundred twenty-three".