67272005 has 4 divisors (see below), whose sum is σ = 80726412. Its totient is φ = 53817600.

The previous prime is 67271983. The next prime is 67272013. The reversal of 67272005 is 50027276.

It is a happy number.

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 40883236 + 26388769 = 6394^2 + 5137^2 .

It is not a de Polignac number, because 67272005 - 2²⁴ = 50494789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6727196 + ... + 6727205.

It is an arithmetic number, because the mean of its divisors is an integer number (20181603).

Almost surely, 2^67272005 is an apocalyptic number.

It is an amenable number.

67272005 is a deficient number, since it is larger than the sum of its proper divisors (13454407).

67272005 is a wasteful number, since it uses less digits than its factorization.

67272005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13454406.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 67272005 is about 8201.9512922231. The cubic root of 67272005 is about 406.7037004555.

The spelling of 67272005 in words is "sixty-seven million, two hundred seventy-two thousand, five".