276561433 has 8 divisors (see below), whose sum is σ = 280053000. Its totient is φ = 273091968.

The previous prime is 276561431. The next prime is 276561443. The reversal of 276561433 is 334165672.

It can be written as a sum of positive squares in 4 ways, for example, as 74011609 + 202549824 = 8603^2 + 14232^2 .

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

It is not a de Polignac number, because 276561433 - 2¹ = 276561431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 276561392 and 276561401.

It is not an unprimeable number, because it can be changed into a prime (276561431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20413 + ... + 31141.

It is an arithmetic number, because the mean of its divisors is an integer number (35006625).

Almost surely, 2^276561433 is an apocalyptic number.

It is an amenable number.

276561433 is a deficient number, since it is larger than the sum of its proper divisors (3491567).

276561433 is a wasteful number, since it uses less digits than its factorization.

276561433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11051.

The product of its digits is 90720, while the sum is 37.

The square root of 276561433 is about 16630.1362892792. The cubic root of 276561433 is about 651.5241809549.

The spelling of 276561433 in words is "two hundred seventy-six million, five hundred sixty-one thousand, four hundred thirty-three".