78485546 has 8 divisors (see below), whose sum is σ = 117767520. Its totient is φ = 39229708.

The previous prime is 78485543. The next prime is 78485551. The reversal of 78485546 is 64558487.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 78485546.

It is not an unprimeable number, because it can be changed into a prime (78485543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5165 + ... + 13551.

It is an arithmetic number, because the mean of its divisors is an integer number (14720940).

Almost surely, 2^78485546 is an apocalyptic number.

78485546 is a deficient number, since it is larger than the sum of its proper divisors (39281974).

78485546 is a wasteful number, since it uses less digits than its factorization.

78485546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13068.

The product of its digits is 1075200, while the sum is 47.

The square root of 78485546 is about 8859.2068493743. The cubic root of 78485546 is about 428.1506042619.

The spelling of 78485546 in words is "seventy-eight million, four hundred eighty-five thousand, five hundred forty-six".