73223578 has 16 divisors (see below), whose sum is σ = 111694464. Its totient is φ = 35995120.

The previous prime is 73223569. The next prime is 73223609. The reversal of 73223578 is 87532237.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91476 + ... + 92272.

It is an arithmetic number, because the mean of its divisors is an integer number (6980904).

Almost surely, 2^73223578 is an apocalyptic number.

73223578 is a deficient number, since it is larger than the sum of its proper divisors (38470886).

73223578 is a wasteful number, since it uses less digits than its factorization.

73223578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517.

The product of its digits is 70560, while the sum is 37.

The square root of 73223578 is about 8557.0776553681. The cubic root of 73223578 is about 418.3601552442.

It can be divided in two parts, 732 and 23578, that added together give a triangular number (24310 = T₂₂₀).

The spelling of 73223578 in words is "seventy-three million, two hundred twenty-three thousand, five hundred seventy-eight".