3625809217 has 8 divisors (see below), whose sum is σ = 3785524416. Its totient is φ = 3466266672.

The previous prime is 3625809203. The next prime is 3625809221. The reversal of 3625809217 is 7129085263.

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 3625809217 - 2²⁷ = 3491591489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3625809247) 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, 723 + ... + 85159.

It is an arithmetic number, because the mean of its divisors is an integer number (473190552).

Almost surely, 2^3625809217 is an apocalyptic number.

It is an amenable number.

3625809217 is a deficient number, since it is larger than the sum of its proper divisors (159715199).

3625809217 is a wasteful number, since it uses less digits than its factorization.

3625809217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86327.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 3625809217 is about 60214.6927003701. The cubic root of 3625809217 is about 1536.2727110512.

The spelling of 3625809217 in words is "three billion, six hundred twenty-five million, eight hundred nine thousand, two hundred seventeen".