4473621 has 6 divisors (see below), whose sum is σ = 6461910. Its totient is φ = 2982408.

The previous prime is 4473619. The next prime is 4473631. The reversal of 4473621 is 1263744.

It can be written as a sum of positive squares in only one way, i.e., 3294225 + 1179396 = 1815^2 + 1086^2 .

It is not a de Polignac number, because 4473621 - 2¹ = 4473619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4473611) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 248526 + ... + 248543.

It is an arithmetic number, because the mean of its divisors is an integer number (1076985).

Almost surely, 2^4473621 is an apocalyptic number.

It is an amenable number.

4473621 is a deficient number, since it is larger than the sum of its proper divisors (1988289).

4473621 is a wasteful number, since it uses less digits than its factorization.

4473621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497075 (or 497072 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 4473621 is about 2115.0936149495. The cubic root of 4473621 is about 164.7731317345.

The spelling of 4473621 in words is "four million, four hundred seventy-three thousand, six hundred twenty-one".