67047813 has 24 divisors (see below), whose sum is σ = 117194688. Its totient is φ = 36058752.

The previous prime is 67047791. The next prime is 67047817. The reversal of 67047813 is 31874076.

It is not a de Polignac number, because 67047813 - 2⁶ = 67047749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67047817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30231 + ... + 32372.

It is an arithmetic number, because the mean of its divisors is an integer number (4883112).

Almost surely, 2^67047813 is an apocalyptic number.

67047813 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

67047813 is a deficient number, since it is larger than the sum of its proper divisors (50146875).

67047813 is a wasteful number, since it uses less digits than its factorization.

67047813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62633 (or 62630 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 67047813 is about 8188.2728948173. The cubic root of 67047813 is about 406.2514013995.

The spelling of 67047813 in words is "sixty-seven million, forty-seven thousand, eight hundred thirteen".