3453558721 has 8 divisors (see below), whose sum is σ = 3815697024. Its totient is φ = 3109085760.

The previous prime is 3453558709. The next prime is 3453558743. The reversal of 3453558721 is 1278553543.

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 3453558721 - 2⁹ = 3453558209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3453558701) 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, 4415925 + ... + 4416706.

It is an arithmetic number, because the mean of its divisors is an integer number (476962128).

Almost surely, 2^3453558721 is an apocalyptic number.

It is an amenable number.

3453558721 is a deficient number, since it is larger than the sum of its proper divisors (362138303).

3453558721 is a wasteful number, since it uses less digits than its factorization.

3453558721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8832671.

The product of its digits is 504000, while the sum is 43.

The square root of 3453558721 is about 58766.9866591780. The cubic root of 3453558721 is about 1511.5491784703.

The spelling of 3453558721 in words is "three billion, four hundred fifty-three million, five hundred fifty-eight thousand, seven hundred twenty-one".