67671013 has 8 divisors (see below), whose sum is σ = 68566680. Its totient is φ = 66781440.

The previous prime is 67671001. The next prime is 67671017. The reversal of 67671013 is 31017676.

It can be written as a sum of positive squares in 4 ways, for example, as 9941409 + 57729604 = 3153^2 + 7598^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 67671013 - 2²⁵ = 34116581 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 (67671017) 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 7 ways as a sum of consecutive naturals, for example, 23433 + ... + 26161.

It is an arithmetic number, because the mean of its divisors is an integer number (8570835).

Almost surely, 2^67671013 is an apocalyptic number.

It is an amenable number.

67671013 is a deficient number, since it is larger than the sum of its proper divisors (895667).

67671013 is a wasteful number, since it uses less digits than its factorization.

67671013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3047.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 67671013 is about 8226.2392987318. The cubic root of 67671013 is about 407.5062048812.

Adding to 67671013 its reverse (31017676), we get a palindrome (98688689).

The spelling of 67671013 in words is "sixty-seven million, six hundred seventy-one thousand, thirteen".