68070473 has 4 divisors (see below), whose sum is σ = 68106948. Its totient is φ = 68034000.

The previous prime is 68070463. The next prime is 68070503. The reversal of 68070473 is 37407086.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26183689 + 41886784 = 5117^2 + 6472^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68070473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68070403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15278 + ... + 19223.

It is an arithmetic number, because the mean of its divisors is an integer number (17026737).

Almost surely, 2^68070473 is an apocalyptic number.

It is an amenable number.

68070473 is a deficient number, since it is larger than the sum of its proper divisors (36475).

68070473 is a wasteful number, since it uses less digits than its factorization.

68070473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36474.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 68070473 is about 8250.4831979709. The cubic root of 68070473 is about 408.3064646859.

The spelling of 68070473 in words is "sixty-eight million, seventy thousand, four hundred seventy-three".