276697764 has 72 divisors (see below), whose sum is σ = 809040960. Its totient is φ = 78098112.

The previous prime is 276697753. The next prime is 276697781. The reversal of 276697764 is 467796672.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 276697764.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14302 + ... + 27530.

It is an arithmetic number, because the mean of its divisors is an integer number (11236680).

Almost surely, 2^276697764 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 276697764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (404520480).

276697764 is an abundant number, since it is smaller than the sum of its proper divisors (532343196).

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

276697764 is a wasteful number, since it uses less digits than its factorization.

276697764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13329 (or 13324 counting only the distinct ones).

The product of its digits is 5334336, while the sum is 54.

The square root of 276697764 is about 16634.2346983563. The cubic root of 276697764 is about 651.6312196829.

The spelling of 276697764 in words is "two hundred seventy-six million, six hundred ninety-seven thousand, seven hundred sixty-four".