276612646 has 8 divisors (see below), whose sum is σ = 415639800. Its totient is φ = 138066048.

The previous prime is 276612619. The next prime is 276612647. The reversal of 276612646 is 646216672.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 276612599 and 276612608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276612647) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 118696 + ... + 121003.

It is an arithmetic number, because the mean of its divisors is an integer number (51954975).

Almost surely, 2^276612646 is an apocalyptic number.

276612646 is a deficient number, since it is larger than the sum of its proper divisors (139027154).

276612646 is a wasteful number, since it uses less digits than its factorization.

276612646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240278.

The product of its digits is 145152, while the sum is 40.

The square root of 276612646 is about 16631.6759828948. The cubic root of 276612646 is about 651.5643943813.

The spelling of 276612646 in words is "two hundred seventy-six million, six hundred twelve thousand, six hundred forty-six".