276672461 has 4 divisors (see below), whose sum is σ = 297954972. Its totient is φ = 255389952.

The previous prime is 276672443. The next prime is 276672481. The reversal of 276672461 is 164276672.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 94692361 + 181980100 = 9731^2 + 13490^2 .

It is a cyclic number.

It is not a de Polignac number, because 276672461 - 2⁶ = 276672397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276672481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10641236 + ... + 10641261.

It is an arithmetic number, because the mean of its divisors is an integer number (74488743).

Almost surely, 2^276672461 is an apocalyptic number.

It is an amenable number.

276672461 is a deficient number, since it is larger than the sum of its proper divisors (21282511).

276672461 is a wasteful number, since it uses less digits than its factorization.

276672461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21282510.

The product of its digits is 169344, while the sum is 41.

The square root of 276672461 is about 16633.4741109607. The cubic root of 276672461 is about 651.6113559790.

The spelling of 276672461 in words is "two hundred seventy-six million, six hundred seventy-two thousand, four hundred sixty-one".