776671044 has 96 divisors (see below), whose sum is σ = 1967898240. Its totient is φ = 237508608.

The previous prime is 776671019. The next prime is 776671073. The reversal of 776671044 is 440176677.

It is a junction number, because it is equal to n+sod(n) for n = 776670987 and 776671005.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2082042 + ... + 2082414.

It is an arithmetic number, because the mean of its divisors is an integer number (20498940).

Almost surely, 2^776671044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 776671044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (983949120).

776671044 is an abundant number, since it is smaller than the sum of its proper divisors (1191227196).

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

776671044 is a wasteful number, since it uses less digits than its factorization.

776671044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 42.

The square root of 776671044 is about 27868.8184894875. The cubic root of 776671044 is about 919.2049858425.

The spelling of 776671044 in words is "seven hundred seventy-six million, six hundred seventy-one thousand, forty-four".