3721850605 has 8 divisors (see below), whose sum is σ = 4872240864. Its totient is φ = 2706800400.

The previous prime is 3721850591. The next prime is 3721850621. The reversal of 3721850605 is 5060581273.

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

It is a de Polignac number, because none of the positive numbers 2^k-3721850605 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 33834951 + ... + 33835060.

It is an arithmetic number, because the mean of its divisors is an integer number (609030108).

Almost surely, 2^3721850605 is an apocalyptic number.

It is an amenable number.

3721850605 is a deficient number, since it is larger than the sum of its proper divisors (1150390259).

3721850605 is a wasteful number, since it uses less digits than its factorization.

3721850605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67670027.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 3721850605 is about 61006.9717737244. The cubic root of 3721850605 is about 1549.7190756922.

The spelling of 3721850605 in words is "three billion, seven hundred twenty-one million, eight hundred fifty thousand, six hundred five".