4170045721 has 8 divisors (see below), whose sum is σ = 4180176000. Its totient is φ = 4159927200.

The previous prime is 4170045697. The next prime is 4170045727. The reversal of 4170045721 is 1275400714.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4170045721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4170045727) 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, 1526685 + ... + 1529413.

It is an arithmetic number, because the mean of its divisors is an integer number (522522000).

Almost surely, 2^4170045721 is an apocalyptic number.

It is an amenable number.

4170045721 is a deficient number, since it is larger than the sum of its proper divisors (10130279).

4170045721 is a wasteful number, since it uses less digits than its factorization.

4170045721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5879.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 4170045721 is about 64575.8911746481. The cubic root of 4170045721 is about 1609.5838489519.

The spelling of 4170045721 in words is "four billion, one hundred seventy million, forty-five thousand, seven hundred twenty-one".