78344108 has 12 divisors (see below), whose sum is σ = 140290920. Its totient is φ = 38260992.

The previous prime is 78344093. The next prime is 78344129. The reversal of 78344108 is 80144387.

It is a happy number.

It is a super-2 number, since 2×78344108² = 12275598516631328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227573 + ... + 227916.

It is an arithmetic number, because the mean of its divisors is an integer number (11690910).

Almost surely, 2^78344108 is an apocalyptic number.

It is an amenable number.

78344108 is a deficient number, since it is larger than the sum of its proper divisors (61946812).

78344108 is a wasteful number, since it uses less digits than its factorization.

78344108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455536 (or 455534 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 78344108 is about 8851.2207067726. The cubic root of 78344108 is about 427.8932610059.

The spelling of 78344108 in words is "seventy-eight million, three hundred forty-four thousand, one hundred eight".