68824015 has 16 divisors (see below), whose sum is σ = 90020448. Its totient is φ = 50207616.

The previous prime is 68824013. The next prime is 68824039. The reversal of 68824015 is 51042886.

It is a cyclic number.

It is not a de Polignac number, because 68824015 - 2¹ = 68824013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68824013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 984 + ... + 11773.

It is an arithmetic number, because the mean of its divisors is an integer number (5626278).

Almost surely, 2^68824015 is an apocalyptic number.

68824015 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

68824015 is a deficient number, since it is larger than the sum of its proper divisors (21196433).

68824015 is a wasteful number, since it uses less digits than its factorization.

68824015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12858.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 68824015 is about 8296.0240476990. The cubic root of 68824015 is about 409.8075936392.

The spelling of 68824015 in words is "sixty-eight million, eight hundred twenty-four thousand, fifteen".