78651327 has 4 divisors (see below), whose sum is σ = 104868440. Its totient is φ = 52434216.

The previous prime is 78651323. The next prime is 78651359. The reversal of 78651327 is 72315687.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 78651327 - 2² = 78651323 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78651323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13108552 + ... + 13108557.

It is an arithmetic number, because the mean of its divisors is an integer number (26217110).

Almost surely, 2^78651327 is an apocalyptic number.

78651327 is a deficient number, since it is larger than the sum of its proper divisors (26217113).

78651327 is a wasteful number, since it uses less digits than its factorization.

78651327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26217112.

The product of its digits is 70560, while the sum is 39.

The square root of 78651327 is about 8868.5583383096. The cubic root of 78651327 is about 428.4518457951.

The spelling of 78651327 in words is "seventy-eight million, six hundred fifty-one thousand, three hundred twenty-seven".