3723900217 has 4 divisors (see below), whose sum is σ = 3740162020. Its totient is φ = 3707638416.

The previous prime is 3723900181. The next prime is 3723900263. The reversal of 3723900217 is 7120093273.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2822159376 + 901740841 = 53124^2 + 30029^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3723900217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3723900277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8130558 + ... + 8131015.

It is an arithmetic number, because the mean of its divisors is an integer number (935040505).

Almost surely, 2^3723900217 is an apocalyptic number.

It is an amenable number.

3723900217 is a deficient number, since it is larger than the sum of its proper divisors (16261803).

3723900217 is a wasteful number, since it uses less digits than its factorization.

3723900217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16261802.

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 3723900217 is about 61023.7676401580. The cubic root of 3723900217 is about 1550.0034987087.

The spelling of 3723900217 in words is "three billion, seven hundred twenty-three million, nine hundred thousand, two hundred seventeen".