67849493 has 4 divisors (see below), whose sum is σ = 68862240. Its totient is φ = 66836748.

The previous prime is 67849459. The next prime is 67849501. The reversal of 67849493 is 39494876.

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 a de Polignac number, because none of the positive numbers 2^k-67849493 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67849433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506273 + ... + 506406.

It is an arithmetic number, because the mean of its divisors is an integer number (17215560).

Almost surely, 2^67849493 is an apocalyptic number.

It is an amenable number.

67849493 is a deficient number, since it is larger than the sum of its proper divisors (1012747).

67849493 is a wasteful number, since it uses less digits than its factorization.

67849493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012746.

The product of its digits is 1306368, while the sum is 50.

The square root of 67849493 is about 8237.0803686743. The cubic root of 67849493 is about 407.8641516361.

The spelling of 67849493 in words is "sixty-seven million, eight hundred forty-nine thousand, four hundred ninety-three".