276997005 has 12 divisors (see below), whose sum is σ = 480128220. Its totient is φ = 147731712.

The previous prime is 276997003. The next prime is 276997037. The reversal of 276997005 is 500799672.

It can be written as a sum of positive squares in 2 ways, for example, as 164403684 + 112593321 = 12822^2 + 10611^2 .

It is not a de Polignac number, because 276997005 - 2¹ = 276997003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 6155489 = 276997005 / (2 + 7 + 6 + 9 + 9 + 7 + 0 + 0 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276997001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3077700 + ... + 3077789.

It is an arithmetic number, because the mean of its divisors is an integer number (40010685).

Almost surely, 2^276997005 is an apocalyptic number.

It is an amenable number.

276997005 is a deficient number, since it is larger than the sum of its proper divisors (203131215).

276997005 is a wasteful number, since it uses less digits than its factorization.

276997005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6155500 (or 6155497 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 276997005 is about 16643.2270007952. The cubic root of 276997005 is about 651.8660421156.

The spelling of 276997005 in words is "two hundred seventy-six million, nine hundred ninety-seven thousand, five".