78956427 has 8 divisors (see below), whose sum is σ = 114845760. Its totient is φ = 47852360.

The previous prime is 78956417. The next prime is 78956443. The reversal of 78956427 is 72465987.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78956427 - 2¹⁸ = 78694283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78956407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1196277 + ... + 1196342.

It is an arithmetic number, because the mean of its divisors is an integer number (14355720).

Almost surely, 2^78956427 is an apocalyptic number.

78956427 is a deficient number, since it is larger than the sum of its proper divisors (35889333).

78956427 is a wasteful number, since it uses less digits than its factorization.

78956427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2392633.

The product of its digits is 846720, while the sum is 48.

The square root of 78956427 is about 8885.7429064766. The cubic root of 78956427 is about 429.0051400974.

The spelling of 78956427 in words is "seventy-eight million, nine hundred fifty-six thousand, four hundred twenty-seven".