67946513 has 4 divisors (see below), whose sum is σ = 70138368. Its totient is φ = 65754660.

The previous prime is 67946491. The next prime is 67946521. The reversal of 67946513 is 31564976.

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 67946513 - 2¹⁰ = 67945489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67946563) 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, 1095881 + ... + 1095942.

It is an arithmetic number, because the mean of its divisors is an integer number (17534592).

Almost surely, 2^67946513 is an apocalyptic number.

It is an amenable number.

67946513 is a deficient number, since it is larger than the sum of its proper divisors (2191855).

67946513 is a wasteful number, since it uses less digits than its factorization.

67946513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191854.

The product of its digits is 136080, while the sum is 41.

The square root of 67946513 is about 8242.9674875011. The cubic root of 67946513 is about 408.0584647251.

The spelling of 67946513 in words is "sixty-seven million, nine hundred forty-six thousand, five hundred thirteen".