4386473621 has 4 divisors (see below), whose sum is σ = 4396243500. Its totient is φ = 4376703744.

The previous prime is 4386473587. The next prime is 4386473629. The reversal of 4386473621 is 1263746834.

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 2147859025 + 2238614596 = 46345^2 + 47314^2 .

It is a cyclic number.

It is not a de Polignac number, because 4386473621 - 2¹⁸ = 4386211477 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 (4386473629) 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, 4884266 + ... + 4885163.

It is an arithmetic number, because the mean of its divisors is an integer number (1099060875).

Almost surely, 2^4386473621 is an apocalyptic number.

It is an amenable number.

4386473621 is a deficient number, since it is larger than the sum of its proper divisors (9769879).

4386473621 is an equidigital number, since it uses as much as digits as its factorization.

4386473621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9769878.

The product of its digits is 580608, while the sum is 44.

The square root of 4386473621 is about 66230.4584084996. The cubic root of 4386473621 is about 1636.9616584838.

The spelling of 4386473621 in words is "four billion, three hundred eighty-six million, four hundred seventy-three thousand, six hundred twenty-one".