78056005 has 16 divisors (see below), whose sum is σ = 97401024. Its totient is φ = 60001920.

The previous prime is 78055987. The next prime is 78056039. The reversal of 78056005 is 50065087.

It is not a de Polignac number, because 78056005 - 2⁷ = 78055877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10894 + ... + 16576.

It is an arithmetic number, because the mean of its divisors is an integer number (6087564).

Almost surely, 2^78056005 is an apocalyptic number.

It is an amenable number.

78056005 is a deficient number, since it is larger than the sum of its proper divisors (19345019).

78056005 is a wasteful number, since it uses less digits than its factorization.

78056005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5796.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 78056005 is about 8834.9309561535. The cubic root of 78056005 is about 427.3681044951.

The spelling of 78056005 in words is "seventy-eight million, fifty-six thousand, five".