78475888 has 20 divisors (see below), whose sum is σ = 152275720. Its totient is φ = 39178944.

The previous prime is 78475883. The next prime is 78475897. The reversal of 78475888 is 88857487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78475883) 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 3 ways as a sum of consecutive naturals, for example, 8506 + ... + 15142.

It is an arithmetic number, because the mean of its divisors is an integer number (7613786).

Almost surely, 2^78475888 is an apocalyptic number.

It is an amenable number.

78475888 is a deficient number, since it is larger than the sum of its proper divisors (73799832).

78475888 is a wasteful number, since it uses less digits than its factorization.

78475888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7384 (or 7378 counting only the distinct ones).

The product of its digits is 4014080, while the sum is 55.

The square root of 78475888 is about 8858.6617499485. The cubic root of 78475888 is about 428.1330415880.

The spelling of 78475888 in words is "seventy-eight million, four hundred seventy-five thousand, eight hundred eighty-eight".