67672273 has 4 divisors (see below), whose sum is σ = 67756528. Its totient is φ = 67588020.

The previous prime is 67672261. The next prime is 67672303. The reversal of 67672273 is 37227676.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 67672273 - 2²⁵ = 34117841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67673273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40911 + ... + 42532.

It is an arithmetic number, because the mean of its divisors is an integer number (16939132).

Almost surely, 2^67672273 is an apocalyptic number.

It is an amenable number.

67672273 is a deficient number, since it is larger than the sum of its proper divisors (84255).

67672273 is an equidigital number, since it uses as much as digits as its factorization.

67672273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84254.

The product of its digits is 148176, while the sum is 40.

The square root of 67672273 is about 8226.3158825807. The cubic root of 67672273 is about 407.5087340520.

The spelling of 67672273 in words is "sixty-seven million, six hundred seventy-two thousand, two hundred seventy-three".