78476544 has 54 divisors (see below), whose sum is σ = 226273866. Its totient is φ = 26158080.

The previous prime is 78476537. The next prime is 78476569. The reversal of 78476544 is 44567487.

It can be written as a sum of positive squares in only one way, i.e., 39538944 + 38937600 = 6288^2 + 6240^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 78476544.

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 5 ways as a sum of consecutive naturals, for example, 14727 + ... + 19334.

Almost surely, 2^78476544 is an apocalyptic number.

It is an amenable number.

78476544 is an abundant number, since it is smaller than the sum of its proper divisors (147797322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78476544 is a wasteful number, since it uses less digits than its factorization.

78476544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34083 (or 34066 counting only the distinct ones).

The product of its digits is 752640, while the sum is 45.

The square root of 78476544 is about 8858.6987757797. The cubic root of 78476544 is about 428.1342345425.

The spelling of 78476544 in words is "seventy-eight million, four hundred seventy-six thousand, five hundred forty-four".