78852667 has 4 divisors (see below), whose sum is σ = 79024176. Its totient is φ = 78681160.

The previous prime is 78852637. The next prime is 78852691. The reversal of 78852667 is 76625887.

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 78852667 - 2⁷ = 78852539 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78852667.

It is not an unprimeable number, because it can be changed into a prime (78852607) 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, 85063 + ... + 85984.

It is an arithmetic number, because the mean of its divisors is an integer number (19756044).

Almost surely, 2^78852667 is an apocalyptic number.

78852667 is a deficient number, since it is larger than the sum of its proper divisors (171509).

78852667 is a wasteful number, since it uses less digits than its factorization.

78852667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171508.

The product of its digits is 1128960, while the sum is 49.

The square root of 78852667 is about 8879.9024206350. The cubic root of 78852667 is about 428.8171330816.

The spelling of 78852667 in words is "seventy-eight million, eight hundred fifty-two thousand, six hundred sixty-seven".