78314285 has 8 divisors (see below), whose sum is σ = 107402496. Its totient is φ = 53701200.

The previous prime is 78314281. The next prime is 78314303. The reversal of 78314285 is 58241387.

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

It is not a de Polignac number, because 78314285 - 2² = 78314281 is a prime.

It is a super-2 number, since 2×78314285² = 12266254470122450, 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 (78314281) 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, 1118741 + ... + 1118810.

It is an arithmetic number, because the mean of its divisors is an integer number (13425312).

Almost surely, 2^78314285 is an apocalyptic number.

It is an amenable number.

78314285 is a deficient number, since it is larger than the sum of its proper divisors (29088211).

78314285 is a wasteful number, since it uses less digits than its factorization.

78314285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2237563.

The product of its digits is 53760, while the sum is 38.

The square root of 78314285 is about 8849.5358635354. The cubic root of 78314285 is about 427.8389591972.

The spelling of 78314285 in words is "seventy-eight million, three hundred fourteen thousand, two hundred eighty-five".