280002097 has 4 divisors (see below), whose sum is σ = 280054516. Its totient is φ = 279949680.

The previous prime is 280002091. The next prime is 280002119. The reversal of 280002097 is 790200082.

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 117158976 + 162843121 = 10824^2 + 12761^2 .

It is a cyclic number.

It is not a de Polignac number, because 280002097 - 2¹⁵ = 279969329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (280002091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17154 + ... + 29227.

It is an arithmetic number, because the mean of its divisors is an integer number (70013629).

Almost surely, 2^280002097 is an apocalyptic number.

It is an amenable number.

280002097 is a deficient number, since it is larger than the sum of its proper divisors (52419).

280002097 is an equidigital number, since it uses as much as digits as its factorization.

280002097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52418.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 280002097 is about 16733.2631904240. The cubic root of 280002097 is about 654.2148952303.

The spelling of 280002097 in words is "two hundred eighty million, two thousand, ninety-seven".