776894814 has 96 divisors (see below), whose sum is σ = 1808142336. Its totient is φ = 249842880.

The previous prime is 776894777. The next prime is 776894821. The reversal of 776894814 is 418498677.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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, 2530449 + ... + 2530755.

It is an arithmetic number, because the mean of its divisors is an integer number (18834816).

Almost surely, 2^776894814 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 776894814, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (904071168).

776894814 is an abundant number, since it is smaller than the sum of its proper divisors (1031247522).

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

776894814 is a wasteful number, since it uses less digits than its factorization.

776894814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492 (or 480 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The square root of 776894814 is about 27872.8329023083. The cubic root of 776894814 is about 919.2932560526.

The spelling of 776894814 in words is "seven hundred seventy-six million, eight hundred ninety-four thousand, eight hundred fourteen".