276646772 has 6 divisors (see below), whose sum is σ = 484131858. Its totient is φ = 138323384.

The previous prime is 276646757. The next prime is 276646781. The reversal of 276646772 is 277646672.

It can be written as a sum of positive squares in only one way, i.e., 226321936 + 50324836 = 15044^2 + 7094^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34580843 + ... + 34580850.

It is an arithmetic number, because the mean of its divisors is an integer number (80688643).

Almost surely, 2^276646772 is an apocalyptic number.

It is an amenable number.

276646772 is a deficient number, since it is larger than the sum of its proper divisors (207485086).

276646772 is a wasteful number, since it uses less digits than its factorization.

276646772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69161697 (or 69161695 counting only the distinct ones).

The product of its digits is 1185408, while the sum is 47.

The square root of 276646772 is about 16632.7018851418. The cubic root of 276646772 is about 651.5911880132.

The spelling of 276646772 in words is "two hundred seventy-six million, six hundred forty-six thousand, seven hundred seventy-two".