78464727 has 48 divisors (see below), whose sum is σ = 130740480. Its totient is φ = 46116000.

The previous prime is 78464713. The next prime is 78464773. The reversal of 78464727 is 72746487.

It is not a de Polignac number, because 78464727 - 2⁷ = 78464599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78466727) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1105102 + ... + 1105172.

It is an arithmetic number, because the mean of its divisors is an integer number (2723760).

Almost surely, 2^78464727 is an apocalyptic number.

78464727 is a deficient number, since it is larger than the sum of its proper divisors (52275753).

78464727 is a wasteful number, since it uses less digits than its factorization.

78464727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 146 counting only the distinct ones).

The product of its digits is 526848, while the sum is 45.

The square root of 78464727 is about 8858.0317791257. The cubic root of 78464727 is about 428.1127439758.

The spelling of 78464727 in words is "seventy-eight million, four hundred sixty-four thousand, seven hundred twenty-seven".