78127323 has 4 divisors (see below), whose sum is σ = 104169768. Its totient is φ = 52084880.

The previous prime is 78127321. The next prime is 78127331. The reversal of 78127323 is 32372187.

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

It is a cyclic number.

It is not a de Polignac number, because 78127323 - 2¹ = 78127321 is a prime.

It is a super-2 number, since 2×78127323² = 12207757198292658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78127321) by changing a digit.

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, 13021218 + ... + 13021223.

It is an arithmetic number, because the mean of its divisors is an integer number (26042442).

Almost surely, 2^78127323 is an apocalyptic number.

78127323 is a deficient number, since it is larger than the sum of its proper divisors (26042445).

78127323 is a wasteful number, since it uses less digits than its factorization.

78127323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26042444.

The product of its digits is 14112, while the sum is 33.

The square root of 78127323 is about 8838.9661725792. The cubic root of 78127323 is about 427.4982237196.

The spelling of 78127323 in words is "seventy-eight million, one hundred twenty-seven thousand, three hundred twenty-three".