67948613 has 4 divisors (see below), whose sum is σ = 69785100. Its totient is φ = 66112128.

The previous prime is 67948577. The next prime is 67948627. The reversal of 67948613 is 31684976.

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 36566209 + 31382404 = 6047^2 + 5602^2 .

It is a cyclic number.

It is not a de Polignac number, because 67948613 - 2¹² = 67944517 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 (67948663) 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, 918188 + ... + 918261.

It is an arithmetic number, because the mean of its divisors is an integer number (17446275).

Almost surely, 2^67948613 is an apocalyptic number.

It is an amenable number.

67948613 is a deficient number, since it is larger than the sum of its proper divisors (1836487).

67948613 is a wasteful number, since it uses less digits than its factorization.

67948613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836486.

The product of its digits is 217728, while the sum is 44.

The square root of 67948613 is about 8243.0948678273. The cubic root of 67948613 is about 408.0626685904.

The spelling of 67948613 in words is "sixty-seven million, nine hundred forty-eight thousand, six hundred thirteen".