802778112 has 66 divisors (see below), whose sum is σ = 2318030988. Its totient is φ = 267589632.

The previous prime is 802778107. The next prime is 802778113. The reversal of 802778112 is 211877208.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (802778113) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34338 + ... + 52769.

Almost surely, 2^802778112 is an apocalyptic number.

It is an amenable number.

802778112 is an abundant number, since it is smaller than the sum of its proper divisors (1515252876).

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

802778112 is a wasteful number, since it uses less digits than its factorization.

802778112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87133 (or 87112 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 36.

The square root of 802778112 is about 28333.3392313719. The cubic root of 802778112 is about 929.3910963870.

The spelling of 802778112 in words is "eight hundred two million, seven hundred seventy-eight thousand, one hundred twelve".