68440703 has 4 divisors (see below), whose sum is σ = 68836488. Its totient is φ = 68044920.

The previous prime is 68440661. The next prime is 68440711. The reversal of 68440703 is 30704486.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30704486 = 2 ⋅15352243.

It is a cyclic number.

It is not a de Polignac number, because 68440703 - 2¹⁴ = 68424319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68440703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68440763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197633 + ... + 197978.

It is an arithmetic number, because the mean of its divisors is an integer number (17209122).

Almost surely, 2^68440703 is an apocalyptic number.

68440703 is a deficient number, since it is larger than the sum of its proper divisors (395785).

68440703 is a wasteful number, since it uses less digits than its factorization.

68440703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395784.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 68440703 is about 8272.8896402648. The cubic root of 68440703 is about 409.0453756923.

The spelling of 68440703 in words is "sixty-eight million, four hundred forty thousand, seven hundred three".