276472646 has 4 divisors (see below), whose sum is σ = 414708972. Its totient is φ = 138236322.

The previous prime is 276472589. The next prime is 276472657. The reversal of 276472646 is 646274672.

276472646 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 276472597 and 276472606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69118160 + ... + 69118163.

It is an arithmetic number, because the mean of its divisors is an integer number (103677243).

Almost surely, 2^276472646 is an apocalyptic number.

276472646 is a deficient number, since it is larger than the sum of its proper divisors (138236326).

276472646 is a wasteful number, since it uses less digits than its factorization.

276472646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138236325.

The product of its digits is 677376, while the sum is 44.

The square root of 276472646 is about 16627.4666140095. The cubic root of 276472646 is about 651.4544519399.

The spelling of 276472646 in words is "two hundred seventy-six million, four hundred seventy-two thousand, six hundred forty-six".