67381349 has 4 divisors (see below), whose sum is σ = 77007264. Its totient is φ = 57755436.

The previous prime is 67381333. The next prime is 67381351. The reversal of 67381349 is 94318376.

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 67381349 - 2⁴ = 67381333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67381399) 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, 4812947 + ... + 4812960.

It is an arithmetic number, because the mean of its divisors is an integer number (19251816).

Almost surely, 2^67381349 is an apocalyptic number.

It is an amenable number.

67381349 is a deficient number, since it is larger than the sum of its proper divisors (9625915).

67381349 is an equidigital number, since it uses as much as digits as its factorization.

67381349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9625914.

The product of its digits is 108864, while the sum is 41.

The square root of 67381349 is about 8208.6143166798. The cubic root of 67381349 is about 406.9239334086.

The spelling of 67381349 in words is "sixty-seven million, three hundred eighty-one thousand, three hundred forty-nine".