776694096 has 140 divisors (see below), whose sum is σ = 2389564692. Its totient is φ = 243606528.

The previous prime is 776694089. The next prime is 776694097. The reversal of 776694096 is 690496677.

It can be written as a sum of positive squares in 2 ways, for example, as 617025600 + 159668496 = 24840^2 + 12636^2 .

It is a super-2 number, since 2×776694096² = 1206507437522514432, which contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (776694097) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 196330 + ... + 200246.

Almost surely, 2^776694096 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 776694096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1194782346).

776694096 is an abundant number, since it is smaller than the sum of its proper divisors (1612870596).

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

776694096 is a wasteful number, since it uses less digits than its factorization.

776694096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3960 (or 3939 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 54.

The square root of 776694096 is about 27869.2320669228. The cubic root of 776694096 is about 919.2140799130.

The spelling of 776694096 in words is "seven hundred seventy-six million, six hundred ninety-four thousand, ninety-six".