78477368 has 32 divisors (see below), whose sum is σ = 154191360. Its totient is φ = 37398240.

The previous prime is 78477367. The next prime is 78477379. The reversal of 78477368 is 86377487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78477361) 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 7 ways as a sum of consecutive naturals, for example, 14255 + ... + 18977.

It is an arithmetic number, because the mean of its divisors is an integer number (4818480).

Almost surely, 2^78477368 is an apocalyptic number.

It is an amenable number.

78477368 is a deficient number, since it is larger than the sum of its proper divisors (75713992).

78477368 is a wasteful number, since it uses less digits than its factorization.

78477368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4827 (or 4823 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 50.

The square root of 78477368 is about 8858.7452836166. The cubic root of 78477368 is about 428.1357330003.

The spelling of 78477368 in words is "seventy-eight million, four hundred seventy-seven thousand, three hundred sixty-eight".