67238849 has 4 divisors (see below), whose sum is σ = 69557460. Its totient is φ = 64920240.

The previous prime is 67238839. The next prime is 67238863. The reversal of 67238849 is 94883276.

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 23348224 + 43890625 = 4832^2 + 6625^2 .

It is a cyclic number.

It is not a de Polignac number, because 67238849 - 2⁸ = 67238593 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (67238839) 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, 1159262 + ... + 1159319.

It is an arithmetic number, because the mean of its divisors is an integer number (17389365).

Almost surely, 2^67238849 is an apocalyptic number.

It is an amenable number.

67238849 is a deficient number, since it is larger than the sum of its proper divisors (2318611).

67238849 is a wasteful number, since it uses less digits than its factorization.

67238849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318610.

The product of its digits is 580608, while the sum is 47.

The square root of 67238849 is about 8199.9298167728. The cubic root of 67238849 is about 406.6368728359.

The spelling of 67238849 in words is "sixty-seven million, two hundred thirty-eight thousand, eight hundred forty-nine".