78314284 has 12 divisors (see below), whose sum is σ = 139636224. Its totient is φ = 38418224.

The previous prime is 78314281. The next prime is 78314303. The reversal of 78314284 is 48241387.

It is a super-2 number, since 2×78314284² = 12266254156865312, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 184492 + ... + 184915.

It is an arithmetic number, because the mean of its divisors is an integer number (11636352).

Almost surely, 2^78314284 is an apocalyptic number.

It is an amenable number.

78314284 is a deficient number, since it is larger than the sum of its proper divisors (61321940).

78314284 is a wasteful number, since it uses less digits than its factorization.

78314284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369464 (or 369462 counting only the distinct ones).

The product of its digits is 43008, while the sum is 37.

The square root of 78314284 is about 8849.5358070353. The cubic root of 78314284 is about 427.8389573762.

The spelling of 78314284 in words is "seventy-eight million, three hundred fourteen thousand, two hundred eighty-four".