78471108 has 18 divisors (see below), whose sum is σ = 198357614. Its totient is φ = 26157024.

The previous prime is 78471103. The next prime is 78471119. The reversal of 78471108 is 80117487.

It can be written as a sum of positive squares in only one way, i.e., 71876484 + 6594624 = 8478^2 + 2568^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2179753 = 78471108 / (7 + 8 + 4 + 7 + 1 + 1 + 0 + 8).

It is not an unprimeable number, because it can be changed into a prime (78471103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1089841 + ... + 1089912.

Almost surely, 2^78471108 is an apocalyptic number.

It is an amenable number.

78471108 is an abundant number, since it is smaller than the sum of its proper divisors (119886506).

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

78471108 is a wasteful number, since it uses less digits than its factorization.

78471108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2179763 (or 2179758 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 36.

The square root of 78471108 is about 8858.3919533965. The cubic root of 78471108 is about 428.1243488224.

The spelling of 78471108 in words is "seventy-eight million, four hundred seventy-one thousand, one hundred eight".