3549903723 has 12 divisors (see below), whose sum is σ = 5211699168. Its totient is φ = 2327805360.

The previous prime is 3549903689. The next prime is 3549903733. The reversal of 3549903723 is 3273099453.

It is not a de Polignac number, because 3549903723 - 2⁹ = 3549903211 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (3549903733) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3232515 + ... + 3233612.

It is an arithmetic number, because the mean of its divisors is an integer number (434308264).

Almost surely, 2^3549903723 is an apocalyptic number.

3549903723 is a deficient number, since it is larger than the sum of its proper divisors (1661795445).

3549903723 is a wasteful number, since it uses less digits than its factorization.

3549903723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6466194 (or 6466191 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 45.

The square root of 3549903723 is about 59581.0684949506. The cubic root of 3549903723 is about 1525.4765112001.

The spelling of 3549903723 in words is "three billion, five hundred forty-nine million, nine hundred three thousand, seven hundred twenty-three".