67407713 has 6 divisors (see below), whose sum is σ = 67841826. Its totient is φ = 66976352.

The previous prime is 67407709. The next prime is 67407721. The reversal of 67407713 is 31770476.

It can be written as a sum of positive squares in only one way, i.e., 66961489 + 446224 = 8183^2 + 668^2 .

It is not a de Polignac number, because 67407713 - 2² = 67407709 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67407313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26681 + ... + 29097.

It is an arithmetic number, because the mean of its divisors is an integer number (11306971).

Almost surely, 2^67407713 is an apocalyptic number.

It is an amenable number.

67407713 is a deficient number, since it is larger than the sum of its proper divisors (434113).

67407713 is an equidigital number, since it uses as much as digits as its factorization.

67407713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2751 (or 2584 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 35.

The square root of 67407713 is about 8210.2200335923. The cubic root of 67407713 is about 406.9769982594.

The spelling of 67407713 in words is "sixty-seven million, four hundred seven thousand, seven hundred thirteen".