67336381 has 8 divisors (see below), whose sum is σ = 77220864. Its totient is φ = 57518160.

The previous prime is 67336369. The next prime is 67336393. The reversal of 67336381 is 18363376.

It is an interprime number because it is at equal distance from previous prime (67336369) and next prime (67336393).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 67336381 - 2⁹ = 67335869 is a prime.

It is a super-2 number, since 2×67336381² = 9068376412354322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 67336381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67330381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14365 + ... + 18466.

It is an arithmetic number, because the mean of its divisors is an integer number (9652608).

Almost surely, 2^67336381 is an apocalyptic number.

It is an amenable number.

67336381 is a deficient number, since it is larger than the sum of its proper divisors (9884483).

67336381 is a wasteful number, since it uses less digits than its factorization.

67336381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33131.

The product of its digits is 54432, while the sum is 37.

The square root of 67336381 is about 8205.8747857861. The cubic root of 67336381 is about 406.8333909077.

The spelling of 67336381 in words is "sixty-seven million, three hundred thirty-six thousand, three hundred eighty-one".