78385327 has 4 divisors (see below), whose sum is σ = 78427456. Its totient is φ = 78343200.

The previous prime is 78385313. The next prime is 78385339. The reversal of 78385327 is 72358387.

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 78385327 - 2⁷ = 78385199 is a prime.

It is a super-2 number, since 2×78385327² = 12288518977793858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78385367) 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, 18138 + ... + 22039.

It is an arithmetic number, because the mean of its divisors is an integer number (19606864).

Almost surely, 2^78385327 is an apocalyptic number.

78385327 is a deficient number, since it is larger than the sum of its proper divisors (42129).

78385327 is a wasteful number, since it uses less digits than its factorization.

78385327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42128.

The product of its digits is 282240, while the sum is 43.

The square root of 78385327 is about 8853.5488364836. The cubic root of 78385327 is about 427.9682900052.

The spelling of 78385327 in words is "seventy-eight million, three hundred eighty-five thousand, three hundred twenty-seven".