209480005 has 8 divisors (see below), whose sum is σ = 287286912. Its totient is φ = 143643408.

The previous prime is 209479993. The next prime is 209480017. The reversal of 209480005 is 500084902.

It is a happy number.

209480005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (209479993) and next prime (209480017).

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 209480005 - 2¹⁵ = 209447237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2992537 + ... + 2992606.

It is an arithmetic number, because the mean of its divisors is an integer number (35910864).

Almost surely, 2^209480005 is an apocalyptic number.

It is an amenable number.

209480005 is a deficient number, since it is larger than the sum of its proper divisors (77806907).

209480005 is an equidigital number, since it uses as much as digits as its factorization.

209480005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5985155.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 209480005 is about 14473.4240938349. The cubic root of 209480005 is about 593.9011850650.

The spelling of 209480005 in words is "two hundred nine million, four hundred eighty thousand, five".