67630273 has 4 divisors (see below), whose sum is σ = 68739028. Its totient is φ = 66521520.

The previous prime is 67630261. The next prime is 67630319. The reversal of 67630273 is 37203676.

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 2537649 + 65092624 = 1593^2 + 8068^2 .

It is a cyclic number.

It is not a de Polignac number, because 67630273 - 2¹³ = 67622081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67631273) 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, 554286 + ... + 554407.

It is an arithmetic number, because the mean of its divisors is an integer number (17184757).

Almost surely, 2^67630273 is an apocalyptic number.

It is an amenable number.

67630273 is a deficient number, since it is larger than the sum of its proper divisors (1108755).

67630273 is a wasteful number, since it uses less digits than its factorization.

67630273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108754.

The product of its (nonzero) digits is 31752, while the sum is 34.

The square root of 67630273 is about 8223.7627032886. The cubic root of 67630273 is about 407.4244114379.

The spelling of 67630273 in words is "sixty-seven million, six hundred thirty thousand, two hundred seventy-three".