68530079 has 4 divisors (see below), whose sum is σ = 69552984. Its totient is φ = 67507176.

The previous prime is 68530073. The next prime is 68530081. The reversal of 68530079 is 97003586.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97003586 = 2 ⋅48501793.

It is a cyclic number.

It is not a de Polignac number, because 68530079 - 2⁸ = 68529823 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 (68530073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511352 + ... + 511485.

It is an arithmetic number, because the mean of its divisors is an integer number (17388246).

Almost surely, 2^68530079 is an apocalyptic number.

68530079 is a deficient number, since it is larger than the sum of its proper divisors (1022905).

68530079 is a wasteful number, since it uses less digits than its factorization.

68530079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022904.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 68530079 is about 8278.2896180310. The cubic root of 68530079 is about 409.2233542709.

The spelling of 68530079 in words is "sixty-eight million, five hundred thirty thousand, seventy-nine".