78444325 has 12 divisors (see below), whose sum is σ = 97493760. Its totient is φ = 62611760.

The previous prime is 78444319. The next prime is 78444347. The reversal of 78444325 is 52344487.

It is a de Polignac number, because none of the positive numbers 2^k-78444325 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8316 + ... + 15034.

It is an arithmetic number, because the mean of its divisors is an integer number (8124480).

Almost surely, 2^78444325 is an apocalyptic number.

It is an amenable number.

78444325 is a deficient number, since it is larger than the sum of its proper divisors (19049435).

78444325 is a wasteful number, since it uses less digits than its factorization.

78444325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7196 (or 7191 counting only the distinct ones).

The product of its digits is 107520, while the sum is 37.

The square root of 78444325 is about 8856.8800940286. The cubic root of 78444325 is about 428.0756355252.

The spelling of 78444325 in words is "seventy-eight million, four hundred forty-four thousand, three hundred twenty-five".