816078 has 8 divisors (see below), whose sum is σ = 1632168. Its totient is φ = 272024.

The previous prime is 816077. The next prime is 816091. The reversal of 816078 is 870618.

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

816078 is an admirable number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 816078.

It is not an unprimeable number, because it can be changed into a prime (816077) 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, 68001 + ... + 68012.

It is an arithmetic number, because the mean of its divisors is an integer number (204021).

2⁸¹⁶⁰⁷⁸ is an apocalyptic number.

816078 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

816078 is a wasteful number, since it uses less digits than its factorization.

816078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136018.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 816078 is about 903.3703559449. The cubic root of 816078 is about 93.4495519366.

The spelling of 816078 in words is "eight hundred sixteen thousand, seventy-eight".