276643413 has 18 divisors (see below), whose sum is σ = 410706114. Its totient is φ = 179436384.

The previous prime is 276643403. The next prime is 276643427. The reversal of 276643413 is 314346672.

It is a happy number.

276643413 is a `hidden beast` number, since 2 + 7 + 6 + 643 + 4 + 1 + 3 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 93663684 + 182979729 = 9678^2 + 13527^2 .

It is not a de Polignac number, because 276643413 - 2²⁴ = 259866197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276643403) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1095 + ... + 23547.

Almost surely, 2^276643413 is an apocalyptic number.

It is an amenable number.

276643413 is a deficient number, since it is larger than the sum of its proper divisors (134062701).

276643413 is a wasteful number, since it uses less digits than its factorization.

276643413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22533 (or 22493 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 276643413 is about 16632.6009090581. The cubic root of 276643413 is about 651.5885508312.

The spelling of 276643413 in words is "two hundred seventy-six million, six hundred forty-three thousand, four hundred thirteen".