78727276 has 12 divisors (see below), whose sum is σ = 137868808. Its totient is φ = 39336192.

The previous prime is 78727247. The next prime is 78727291. The reversal of 78727276 is 67272787.

It is an alternating number because its digits alternate between odd and even.

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 3 ways as a sum of consecutive naturals, for example, 460 + ... + 12556.

Almost surely, 2^78727276 is an apocalyptic number.

It is an amenable number.

78727276 is a deficient number, since it is larger than the sum of its proper divisors (59141532).

78727276 is a wasteful number, since it uses less digits than its factorization.

78727276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13728 (or 13726 counting only the distinct ones).

The product of its digits is 460992, while the sum is 46.

The square root of 78727276 is about 8872.8392299196. The cubic root of 78727276 is about 428.5897117491.

It can be divided in two parts, 78727 and 276, that added together give a triangular number (79003 = T₃₉₇).

The spelling of 78727276 in words is "seventy-eight million, seven hundred twenty-seven thousand, two hundred seventy-six".