67947049 has 3 divisors (see below), whose sum is σ = 67955293. Its totient is φ = 67938806.

The previous prime is 67947023. The next prime is 67947091. The reversal of 67947049 is 94074976.

The square root of 67947049 is 8243.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 67947049 - 2¹¹ = 67945001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67947449) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4122 + ... + 12364.

Almost surely, 2^67947049 is an apocalyptic number.

67947049 is the 8243-rd square number.

67947049 is the 4122-nd centered octagonal number.

It is an amenable number.

67947049 is a deficient number, since it is larger than the sum of its proper divisors (8244).

67947049 is an frugal number, since it uses more digits than its factorization.

67947049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16486 (or 8243 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 46.

The cubic root of 67947049 is about 408.0595377199.

The spelling of 67947049 in words is "sixty-seven million, nine hundred forty-seven thousand, forty-nine".