78448214 has 16 divisors (see below), whose sum is σ = 130150608. Its totient is φ = 35227872.

The previous prime is 78448189. The next prime is 78448247. The reversal of 78448214 is 41284487.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39812 + ... + 41735.

It is an arithmetic number, because the mean of its divisors is an integer number (8134413).

Almost surely, 2^78448214 is an apocalyptic number.

78448214 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

78448214 is a deficient number, since it is larger than the sum of its proper divisors (51702394).

78448214 is a wasteful number, since it uses less digits than its factorization.

78448214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81599.

The product of its digits is 57344, while the sum is 38.

The square root of 78448214 is about 8857.0996381434. The cubic root of 78448214 is about 428.0827095812.

The spelling of 78448214 in words is "seventy-eight million, four hundred forty-eight thousand, two hundred fourteen".