78800014 has 4 divisors (see below), whose sum is σ = 118200024. Its totient is φ = 39400006.

The previous prime is 78799997. The next prime is 78800017. The reversal of 78800014 is 41000887.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78800017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19700002 + ... + 19700005.

It is an arithmetic number, because the mean of its divisors is an integer number (29550006).

Almost surely, 2^78800014 is an apocalyptic number.

78800014 is a deficient number, since it is larger than the sum of its proper divisors (39400010).

78800014 is a wasteful number, since it uses less digits than its factorization.

78800014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39400009.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 78800014 is about 8876.9371970292. The cubic root of 78800014 is about 428.7216658567.

The spelling of 78800014 in words is "seventy-eight million, eight hundred thousand, fourteen".