3431316621 has 16 divisors (see below), whose sum is σ = 4625596800. Its totient is φ = 2262368448.

The previous prime is 3431316611. The next prime is 3431316641. The reversal of 3431316621 is 1266131343.

3431316621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3431316621 - 2¹⁰ = 3431315597 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3431316611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172720 + ... + 191558.

It is an arithmetic number, because the mean of its divisors is an integer number (289099800).

Almost surely, 2^3431316621 is an apocalyptic number.

It is an amenable number.

3431316621 is a deficient number, since it is larger than the sum of its proper divisors (1194280179).

3431316621 is a wasteful number, since it uses less digits than its factorization.

3431316621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19508.

The product of its digits is 7776, while the sum is 30.

The square root of 3431316621 is about 58577.4412295382. The cubic root of 3431316621 is about 1508.2972225522.

Adding to 3431316621 its reverse (1266131343), we get a palindrome (4697447964).

The spelling of 3431316621 in words is "three billion, four hundred thirty-one million, three hundred sixteen thousand, six hundred twenty-one".