280275097 has 8 divisors (see below), whose sum is σ = 282066176. Its totient is φ = 278489232.

The previous prime is 280275089. The next prime is 280275131. The reversal of 280275097 is 790572082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 280275097 - 2³ = 280275089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (280275497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174703 + ... + 176299.

It is an arithmetic number, because the mean of its divisors is an integer number (35258272).

Almost surely, 2^280275097 is an apocalyptic number.

It is an amenable number.

280275097 is a deficient number, since it is larger than the sum of its proper divisors (1791079).

280275097 is a wasteful number, since it uses less digits than its factorization.

280275097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2607.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 280275097 is about 16741.4186077525. The cubic root of 280275097 is about 654.4274444159.

It can be divided in two parts, 28027 and 5097, that added together give a square (33124 = 182²).

The spelling of 280275097 in words is "two hundred eighty million, two hundred seventy-five thousand, ninety-seven".