72336562 has 4 divisors (see below), whose sum is σ = 108504846. Its totient is φ = 36168280.

The previous prime is 72336559. The next prime is 72336571. The reversal of 72336562 is 26563327.

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

It can be written as a sum of positive squares in only one way, i.e., 60233121 + 12103441 = 7761^2 + 3479^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 18084139 + ... + 18084142.

Almost surely, 2^72336562 is an apocalyptic number.

72336562 is a deficient number, since it is larger than the sum of its proper divisors (36168284).

72336562 is a wasteful number, since it uses less digits than its factorization.

72336562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36168283.

The product of its digits is 45360, while the sum is 34.

The square root of 72336562 is about 8505.0903581326. The cubic root of 72336562 is about 416.6639768004.

Adding to 72336562 its reverse (26563327), we get a palindrome (98899889).

The spelling of 72336562 in words is "seventy-two million, three hundred thirty-six thousand, five hundred sixty-two".