280607 has 2 divisors, whose sum is σ = 280608. Its totient is φ = 280606.

The previous prime is 280603. The next prime is 280613. The reversal of 280607 is 706082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 280607 - 2² = 280603 is a prime.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 280607.

It is not a weakly prime, because it can be changed into another prime (280603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140303 + 140304.

It is an arithmetic number, because the mean of its divisors is an integer number (140304).

2²⁸⁰⁶⁰⁷ is an apocalyptic number.

280607 is a deficient number, since it is larger than the sum of its proper divisors (1).

280607 is an equidigital number, since it uses as much as digits as its factorization.

280607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 280607 is about 529.7235127876. The cubic root of 280607 is about 65.4685667797.

Adding to 280607 its reverse (706082), we get a palindrome (986689).

The spelling of 280607 in words is "two hundred eighty thousand, six hundred seven".