3716250721 has 4 divisors (see below), whose sum is σ = 3716375344. Its totient is φ = 3716126100.

The previous prime is 3716250673. The next prime is 3716250731. The reversal of 3716250721 is 1270526173.

3716250721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3716250721 - 2¹³ = 3716242529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3716250731) 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, 11806 + ... + 87016.

It is an arithmetic number, because the mean of its divisors is an integer number (929093836).

Almost surely, 2^3716250721 is an apocalyptic number.

It is an amenable number.

3716250721 is a deficient number, since it is larger than the sum of its proper divisors (124623).

3716250721 is an equidigital number, since it uses as much as digits as its factorization.

3716250721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124622.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 3716250721 is about 60961.0590541208. The cubic root of 3716250721 is about 1548.9414515082.

Adding to 3716250721 its reverse (1270526173), we get a palindrome (4986776894).

The spelling of 3716250721 in words is "three billion, seven hundred sixteen million, two hundred fifty thousand, seven hundred twenty-one".