67756313 has 8 divisors (see below), whose sum is σ = 70720776. Its totient is φ = 64854400.

The previous prime is 67756301. The next prime is 67756319. The reversal of 67756313 is 31365776.

It can be written as a sum of positive squares in 4 ways, for example, as 565504 + 67190809 = 752^2 + 8197^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 67756313 - 2⁸ = 67756057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67756319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13418 + ... + 17763.

It is an arithmetic number, because the mean of its divisors is an integer number (8840097).

Almost surely, 2^67756313 is an apocalyptic number.

It is an amenable number.

67756313 is a deficient number, since it is larger than the sum of its proper divisors (2964463).

67756313 is a wasteful number, since it uses less digits than its factorization.

67756313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31275.

The product of its digits is 79380, while the sum is 38.

The square root of 67756313 is about 8231.4222950836. The cubic root of 67756313 is about 407.6773548943.

The spelling of 67756313 in words is "sixty-seven million, seven hundred fifty-six thousand, three hundred thirteen".