67113405 has 24 divisors (see below), whose sum is σ = 116521080. Its totient is φ = 35735040.

The previous prime is 67113401. The next prime is 67113413. The reversal of 67113405 is 50431176.

It can be written as a sum of positive squares in 4 ways, for example, as 7112889 + 60000516 = 2667^2 + 7746^2 .

It is not a de Polignac number, because 67113405 - 2² = 67113401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67113401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50145 + ... + 51465.

It is an arithmetic number, because the mean of its divisors is an integer number (4855045).

Almost surely, 2^67113405 is an apocalyptic number.

It is an amenable number.

67113405 is a deficient number, since it is larger than the sum of its proper divisors (49407675).

67113405 is a wasteful number, since it uses less digits than its factorization.

67113405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2461 (or 2458 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 67113405 is about 8192.2771559561. The cubic root of 67113405 is about 406.3838350367.

The spelling of 67113405 in words is "sixty-seven million, one hundred thirteen thousand, four hundred five".