4376064421 has 4 divisors (see below), whose sum is σ = 4447803244. Its totient is φ = 4304325600.

The previous prime is 4376064389. The next prime is 4376064461. The reversal of 4376064421 is 1244606734.

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 1272348900 + 3103715521 = 35670^2 + 55711^2 .

It is a cyclic number.

It is not a de Polignac number, because 4376064421 - 2⁵ = 4376064389 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 (4376064461) 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, 35869320 + ... + 35869441.

It is an arithmetic number, because the mean of its divisors is an integer number (1111950811).

Almost surely, 2^4376064421 is an apocalyptic number.

It is an amenable number.

4376064421 is a deficient number, since it is larger than the sum of its proper divisors (71738823).

4376064421 is an equidigital number, since it uses as much as digits as its factorization.

4376064421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71738822.

The product of its (nonzero) digits is 96768, while the sum is 37.

The square root of 4376064421 is about 66151.8285537142. The cubic root of 4376064421 is about 1635.6657840216.

The spelling of 4376064421 in words is "four billion, three hundred seventy-six million, sixty-four thousand, four hundred twenty-one".