67915 has 12 divisors (see below), whose sum is σ = 88416. Its totient is φ = 50048.

The previous prime is 67901. The next prime is 67927. The reversal of 67915 is 51976.

It is a happy number.

It is not a de Polignac number, because 67915 - 2⁵ = 67883 is a prime.

It is a super-2 number, since 2×67915² = 9224894450, which contains 22 as substring.

It is a Duffinian number.

67915 is a lucky number.

It is a plaindrome in base 12.

It is a zygodrome in base 12.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1422 + ... + 1468.

It is an arithmetic number, because the mean of its divisors is an integer number (7368).

2⁶⁷⁹¹⁵ is an apocalyptic number.

67915 is a deficient number, since it is larger than the sum of its proper divisors (20501).

67915 is a wasteful number, since it uses less digits than its factorization.

67915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86 (or 69 counting only the distinct ones).

The product of its digits is 1890, while the sum is 28.

The square root of 67915 is about 260.6050651849. The cubic root of 67915 is about 40.7995370318.

It can be divided in two parts, 6 and 7915, that added together give a square (7921 = 89²).

The spelling of 67915 in words is "sixty-seven thousand, nine hundred fifteen".