276397513 has 16 divisors (see below), whose sum is σ = 321967360. Its totient is φ = 232393536.

The previous prime is 276397493. The next prime is 276397559. The reversal of 276397513 is 315793672.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 276397513 - 2⁵ = 276397481 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 276397513.

It is not an unprimeable number, because it can be changed into a prime (276397013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76831 + ... + 80347.

It is an arithmetic number, because the mean of its divisors is an integer number (20122960).

Almost surely, 2^276397513 is an apocalyptic number.

It is an amenable number.

276397513 is a deficient number, since it is larger than the sum of its proper divisors (45569847).

276397513 is a wasteful number, since it uses less digits than its factorization.

276397513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3736.

The product of its digits is 238140, while the sum is 43.

The square root of 276397513 is about 16625.2071566041. The cubic root of 276397513 is about 651.3954344536.

The spelling of 276397513 in words is "two hundred seventy-six million, three hundred ninety-seven thousand, five hundred thirteen".