280968995 has 8 divisors (see below), whose sum is σ = 340951680. Its totient is φ = 222249280.

The previous prime is 280968991. The next prime is 280969021. The reversal of 280968995 is 599869082.

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

It is not a de Polignac number, because 280968995 - 2² = 280968991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 280968995.

It is not an unprimeable number, because it can be changed into a prime (280968991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315251 + ... + 316140.

It is an arithmetic number, because the mean of its divisors is an integer number (42618960).

Almost surely, 2^280968995 is an apocalyptic number.

280968995 is a deficient number, since it is larger than the sum of its proper divisors (59982685).

280968995 is an equidigital number, since it uses as much as digits as its factorization.

280968995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631485.

The product of its (nonzero) digits is 2799360, while the sum is 56.

The square root of 280968995 is about 16762.1297871124. The cubic root of 280968995 is about 654.9670709705.

The spelling of 280968995 in words is "two hundred eighty million, nine hundred sixty-eight thousand, nine hundred ninety-five".