8051778 has 96 divisors (see below), whose sum is σ = 22161600. Its totient is φ = 2153088.

The previous prime is 8051731. The next prime is 8051783. The reversal of 8051778 is 8771508.

8051778 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×8051778² = 129662257922568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44893 + ... + 45071.

It is an arithmetic number, because the mean of its divisors is an integer number (230850).

Almost surely, 2^8051778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8051778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11080800).

8051778 is an abundant number, since it is smaller than the sum of its proper divisors (14109822).

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

8051778 is a wasteful number, since it uses less digits than its factorization.

8051778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 36.

The square root of 8051778 is about 2837.5655058518. The cubic root of 8051778 is about 200.4305557768.

The spelling of 8051778 in words is "eight million, fifty-one thousand, seven hundred seventy-eight".