78044005 has 16 divisors (see below), whose sum is σ = 101211264. Its totient is φ = 57430080.

The previous prime is 78044003. The next prime is 78044051. The reversal of 78044005 is 50044087.

It is not a de Polignac number, because 78044005 - 2¹ = 78044003 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 (78044003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18000 + ... + 21910.

It is an arithmetic number, because the mean of its divisors is an integer number (6325704).

Almost surely, 2^78044005 is an apocalyptic number.

It is an amenable number.

78044005 is a deficient number, since it is larger than the sum of its proper divisors (23167259).

78044005 is a wasteful number, since it uses less digits than its factorization.

78044005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4236.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 78044005 is about 8834.2518075953. The cubic root of 78044005 is about 427.3462027845.

The spelling of 78044005 in words is "seventy-eight million, forty-four thousand, five".