72932005 has 4 divisors (see below), whose sum is σ = 87518412. Its totient is φ = 58345600.

The previous prime is 72932003. The next prime is 72932021. The reversal of 72932005 is 50023927.

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 14424804 + 58507201 = 3798^2 + 7649^2 .

It is not a de Polignac number, because 72932005 - 2¹ = 72932003 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 (72932003) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 7293196 + ... + 7293205.

It is an arithmetic number, because the mean of its divisors is an integer number (21879603).

Almost surely, 2^72932005 is an apocalyptic number.

It is an amenable number.

72932005 is a deficient number, since it is larger than the sum of its proper divisors (14586407).

72932005 is a wasteful number, since it uses less digits than its factorization.

72932005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14586406.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 72932005 is about 8540.0237119109. The cubic root of 72932005 is about 417.8041194351.

The spelling of 72932005 in words is "seventy-two million, nine hundred thirty-two thousand, five".