4546621 has 4 divisors (see below), whose sum is σ = 4554652. Its totient is φ = 4538592.

The previous prime is 4546609. The next prime is 4546631. The reversal of 4546621 is 1266454.

It is the 871-st star number.

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 1413721 + 3132900 = 1189^2 + 1770^2 .

It is a cyclic number.

It is not a de Polignac number, because 4546621 - 2⁵ = 4546589 is a prime.

It is a pancake number, because a pancake can be divided into 4546621 parts by 3015 straight cuts.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4546621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4546601) 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, 3096 + ... + 4321.

It is an arithmetic number, because the mean of its divisors is an integer number (1138663).

Almost surely, 2^4546621 is an apocalyptic number.

It is an amenable number.

4546621 is a deficient number, since it is larger than the sum of its proper divisors (8031).

4546621 is an equidigital number, since it uses as much as digits as its factorization.

4546621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8030.

The product of its digits is 5760, while the sum is 28.

The square root of 4546621 is about 2132.2807038474. The cubic root of 4546621 is about 165.6645497577.

The spelling of 4546621 in words is "four million, five hundred forty-six thousand, six hundred twenty-one".