3816334621 has 4 divisors (see below), whose sum is σ = 4163274144. Its totient is φ = 3469395100.

The previous prime is 3816334619. The next prime is 3816334631. The reversal of 3816334621 is 1264336183.

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 an emirpimes, since its reverse is a distinct semiprime: 1264336183 = 11 ⋅114939653.

It is a cyclic number.

It is not a de Polignac number, because 3816334621 - 2¹ = 3816334619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3816334631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173469745 + ... + 173469766.

It is an arithmetic number, because the mean of its divisors is an integer number (1040818536).

Almost surely, 2^3816334621 is an apocalyptic number.

It is an amenable number.

3816334621 is a deficient number, since it is larger than the sum of its proper divisors (346939523).

3816334621 is a wasteful number, since it uses less digits than its factorization.

3816334621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346939522.

The product of its digits is 62208, while the sum is 37.

The square root of 3816334621 is about 61776.4892252708. The cubic root of 3816334621 is about 1562.7235216101.

The spelling of 3816334621 in words is "three billion, eight hundred sixteen million, three hundred thirty-four thousand, six hundred twenty-one".