68450845 has 8 divisors (see below), whose sum is σ = 83487960. Its totient is φ = 53862720.

The previous prime is 68450839. The next prime is 68450861. The reversal of 68450845 is 54805486.

It can be written as a sum of positive squares in 4 ways, for example, as 5184729 + 63266116 = 2277^2 + 7954^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68450845 - 2⁷ = 68450717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68450798 and 68450807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111910 + ... + 112519.

It is an arithmetic number, because the mean of its divisors is an integer number (10435995).

Almost surely, 2^68450845 is an apocalyptic number.

It is an amenable number.

68450845 is a deficient number, since it is larger than the sum of its proper divisors (15037115).

68450845 is a wasteful number, since it uses less digits than its factorization.

68450845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224495.

The product of its (nonzero) digits is 153600, while the sum is 40.

The square root of 68450845 is about 8273.5025835495. The cubic root of 68450845 is about 409.0655797187.

It can be divided in two parts, 684 and 50845, that added together give a square (51529 = 227²).

The spelling of 68450845 in words is "sixty-eight million, four hundred fifty thousand, eight hundred forty-five".