3520403993 has 8 divisors (see below), whose sum is σ = 3530786112. Its totient is φ = 3510038416.

The previous prime is 3520403977. The next prime is 3520404029. The reversal of 3520403993 is 3993040253.

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 3520403993 - 2⁴ = 3520403977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3520403963) 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, 512246 + ... + 519072.

It is an arithmetic number, because the mean of its divisors is an integer number (441348264).

Almost surely, 2^3520403993 is an apocalyptic number.

It is an amenable number.

3520403993 is a deficient number, since it is larger than the sum of its proper divisors (10382119).

3520403993 is an equidigital number, since it uses as much as digits as its factorization.

3520403993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8271.

The product of its (nonzero) digits is 87480, while the sum is 38.

The square root of 3520403993 is about 59332.9924493953. The cubic root of 3520403993 is about 1521.2391777667.

The spelling of 3520403993 in words is "three billion, five hundred twenty million, four hundred three thousand, nine hundred ninety-three".