72435205 has 4 divisors (see below), whose sum is σ = 86922252. Its totient is φ = 57948160.

The previous prime is 72435191. The next prime is 72435217. The reversal of 72435205 is 50253427.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30107169 + 42328036 = 5487^2 + 6506^2 .

It is not a de Polignac number, because 72435205 - 2⁵ = 72435173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7243516 + ... + 7243525.

It is an arithmetic number, because the mean of its divisors is an integer number (21730563).

Almost surely, 2^72435205 is an apocalyptic number.

It is an amenable number.

72435205 is a deficient number, since it is larger than the sum of its proper divisors (14487047).

72435205 is a wasteful number, since it uses less digits than its factorization.

72435205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14487046.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 72435205 is about 8510.8874390395. The cubic root of 72435205 is about 416.8532877794.

The spelling of 72435205 in words is "seventy-two million, four hundred thirty-five thousand, two hundred five".