3453996921 has 8 divisors (see below), whose sum is σ = 4605601440. Its totient is φ = 2302528512.

The previous prime is 3453996919. The next prime is 3453996929. The reversal of 3453996921 is 1296993543.

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

It is not a de Polignac number, because 3453996921 - 2¹ = 3453996919 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (3453996929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76186 + ... + 112748.

It is an arithmetic number, because the mean of its divisors is an integer number (575700180).

Almost surely, 2^3453996921 is an apocalyptic number.

It is an amenable number.

3453996921 is a deficient number, since it is larger than the sum of its proper divisors (1151604519).

3453996921 is a wasteful number, since it uses less digits than its factorization.

3453996921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68055.

The product of its digits is 1574640, while the sum is 51.

The square root of 3453996921 is about 58770.7148246471. The cubic root of 3453996921 is about 1511.6131060391.

The spelling of 3453996921 in words is "three billion, four hundred fifty-three million, nine hundred ninety-six thousand, nine hundred twenty-one".