993808078 has 8 divisors (see below), whose sum is σ = 1492351200. Its totient is φ = 496357680.

The previous prime is 993808073. The next prime is 993808093. The reversal of 993808078 is 870808399.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993808073) 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, 270903 + ... + 274546.

It is an arithmetic number, because the mean of its divisors is an integer number (186543900).

Almost surely, 2^993808078 is an apocalyptic number.

993808078 is a deficient number, since it is larger than the sum of its proper divisors (498543122).

993808078 is a wasteful number, since it uses less digits than its factorization.

993808078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546362.

The product of its (nonzero) digits is 870912, while the sum is 52.

The square root of 993808078 is about 31524.7216958374. The cubic root of 993808078 is about 997.9317512964.

The spelling of 993808078 in words is "nine hundred ninety-three million, eight hundred eight thousand, seventy-eight".