78034005 has 48 divisors (see below), whose sum is σ = 155510784. Its totient is φ = 35458560.

The previous prime is 78034003. The next prime is 78034031. The reversal of 78034005 is 50043087.

It is not a de Polignac number, because 78034005 - 2¹ = 78034003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78034005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78034003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59517 + ... + 60813.

It is an arithmetic number, because the mean of its divisors is an integer number (3239808).

Almost surely, 2^78034005 is an apocalyptic number.

It is an amenable number.

78034005 is a deficient number, since it is larger than the sum of its proper divisors (77476779).

78034005 is a wasteful number, since it uses less digits than its factorization.

78034005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506 (or 1503 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 78034005 is about 8833.6858105776. The cubic root of 78034005 is about 427.3279496440.

The spelling of 78034005 in words is "seventy-eight million, thirty-four thousand, five".