78827213 has 8 divisors (see below), whose sum is σ = 80800896. Its totient is φ = 76860000.

The previous prime is 78827201. The next prime is 78827237. The reversal of 78827213 is 31272887.

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 78827213 - 2¹⁴ = 78810829 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 (78827263) 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, 31073 + ... + 33513.

It is an arithmetic number, because the mean of its divisors is an integer number (10100112).

Almost surely, 2^78827213 is an apocalyptic number.

It is an amenable number.

78827213 is a deficient number, since it is larger than the sum of its proper divisors (1973683).

78827213 is a wasteful number, since it uses less digits than its factorization.

78827213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3235.

The product of its digits is 37632, while the sum is 38.

The square root of 78827213 is about 8878.4690684825. The cubic root of 78827213 is about 428.7709867414.

The spelling of 78827213 in words is "seventy-eight million, eight hundred twenty-seven thousand, two hundred thirteen".