67272273 has 12 divisors (see below), whose sum is σ = 97677060. Its totient is φ = 44614656.

The previous prime is 67272259. The next prime is 67272311. The reversal of 67272273 is 37227276.

It can be written as a sum of positive squares in 2 ways, for example, as 8105409 + 59166864 = 2847^2 + 7692^2 .

It is not a de Polignac number, because 67272273 - 2⁵ = 67272241 is a prime.

It is a super-3 number, since 3×67272273³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (67272223) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 17628 + ... + 21101.

It is an arithmetic number, because the mean of its divisors is an integer number (8139755).

Almost surely, 2^67272273 is an apocalyptic number.

It is an amenable number.

67272273 is a deficient number, since it is larger than the sum of its proper divisors (30404787).

67272273 is a wasteful number, since it uses less digits than its factorization.

67272273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38928 (or 38925 counting only the distinct ones).

The product of its digits is 49392, while the sum is 36.

The square root of 67272273 is about 8201.9676297825. The cubic root of 67272273 is about 406.7042405338.

The spelling of 67272273 in words is "sixty-seven million, two hundred seventy-two thousand, two hundred seventy-three".