67381413 has 32 divisors (see below), whose sum is σ = 102211200. Its totient is φ = 39110400.

The previous prime is 67381411. The next prime is 67381423. The reversal of 67381413 is 31418376.

It is not a de Polignac number, because 67381413 - 2¹ = 67381411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67381411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173023 + ... + 173411.

It is an arithmetic number, because the mean of its divisors is an integer number (3194100).

Almost surely, 2^67381413 is an apocalyptic number.

It is an amenable number.

67381413 is a deficient number, since it is larger than the sum of its proper divisors (34829787).

67381413 is a wasteful number, since it uses less digits than its factorization.

67381413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613.

The product of its digits is 12096, while the sum is 33.

The square root of 67381413 is about 8208.6182150226. The cubic root of 67381413 is about 406.9240622430.

Adding to 67381413 its reverse (31418376), we get a palindrome (98799789).

The spelling of 67381413 in words is "sixty-seven million, three hundred eighty-one thousand, four hundred thirteen".