73236505 has 8 divisors (see below), whose sum is σ = 90259272. Its totient is φ = 57005568.

The previous prime is 73236497. The next prime is 73236547. The reversal of 73236505 is 50563237.

It can be written as a sum of positive squares in 4 ways, for example, as 37810201 + 35426304 = 6149^2 + 5952^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73236505 - 2³ = 73236497 is a prime.

It is a Duffinian number.

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, 197752 + ... + 198121.

It is an arithmetic number, because the mean of its divisors is an integer number (11282409).

Almost surely, 2^73236505 is an apocalyptic number.

It is an amenable number.

73236505 is a deficient number, since it is larger than the sum of its proper divisors (17022767).

73236505 is a wasteful number, since it uses less digits than its factorization.

73236505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395915.

The product of its (nonzero) digits is 18900, while the sum is 31.

The square root of 73236505 is about 8557.8329616790. The cubic root of 73236505 is about 418.3847731048.

The spelling of 73236505 in words is "seventy-three million, two hundred thirty-six thousand, five hundred five".