68805445 has 16 divisors (see below), whose sum is σ = 84015360. Its totient is φ = 54085824.

The previous prime is 68805439. The next prime is 68805467. The reversal of 68805445 is 54450886.

It is a cyclic number.

It is not a de Polignac number, because 68805445 - 2⁵ = 68805413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68805398 and 68805407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147102 + ... + 147568.

It is an arithmetic number, because the mean of its divisors is an integer number (5250960).

Almost surely, 2^68805445 is an apocalyptic number.

It is an amenable number.

68805445 is a deficient number, since it is larger than the sum of its proper divisors (15209915).

68805445 is a wasteful number, since it uses less digits than its factorization.

68805445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924.

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

The square root of 68805445 is about 8294.9047613580. The cubic root of 68805445 is about 409.7707324188.

The spelling of 68805445 in words is "sixty-eight million, eight hundred five thousand, four hundred forty-five".