280464713 has 4 divisors (see below), whose sum is σ = 290135940. Its totient is φ = 270793488.

The previous prime is 280464689. The next prime is 280464731. The reversal of 280464713 is 317464082.

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 147938569 + 132526144 = 12163^2 + 11512^2 .

It is a cyclic number.

It is not a de Polignac number, because 280464713 - 2⁶ = 280464649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (280464913) 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, 4835570 + ... + 4835627.

It is an arithmetic number, because the mean of its divisors is an integer number (72533985).

Almost surely, 2^280464713 is an apocalyptic number.

It is an amenable number.

280464713 is a deficient number, since it is larger than the sum of its proper divisors (9671227).

280464713 is an equidigital number, since it uses as much as digits as its factorization.

280464713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9671226.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 280464713 is about 16747.0807306826. The cubic root of 280464713 is about 654.5749922387.

The spelling of 280464713 in words is "two hundred eighty million, four hundred sixty-four thousand, seven hundred thirteen".