3546500621 has 4 divisors (see below), whose sum is σ = 3551223744. Its totient is φ = 3541777500.

The previous prime is 3546500603. The next prime is 3546500641. The reversal of 3546500621 is 1260056453.

3546500621 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 an emirpimes, since its reverse is a distinct semiprime: 1260056453 = 27059 ⋅46567.

It is a cyclic number.

It is not a de Polignac number, because 3546500621 - 2¹⁰ = 3546499597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3546500641) 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, 2360435 + ... + 2361936.

It is an arithmetic number, because the mean of its divisors is an integer number (887805936).

Almost surely, 2^3546500621 is an apocalyptic number.

It is an amenable number.

3546500621 is a deficient number, since it is larger than the sum of its proper divisors (4723123).

3546500621 is an equidigital number, since it uses as much as digits as its factorization.

3546500621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4723122.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 3546500621 is about 59552.5030624238. The cubic root of 3546500621 is about 1524.9888912207.

The spelling of 3546500621 in words is "three billion, five hundred forty-six million, five hundred thousand, six hundred twenty-one".