4376990557 has 4 divisors (see below), whose sum is σ = 4377123036. Its totient is φ = 4376858080.

The previous prime is 4376990549. The next prime is 4376990567. The reversal of 4376990557 is 7550996734.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1958416516 + 2418574041 = 44254^2 + 49179^2 .

It is a cyclic number.

It is not a de Polignac number, because 4376990557 - 2³ = 4376990549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4376990498 and 4376990507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4376990567) 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, 28233 + ... + 97729.

It is an arithmetic number, because the mean of its divisors is an integer number (1094280759).

Almost surely, 2^4376990557 is an apocalyptic number.

It is an amenable number.

4376990557 is a deficient number, since it is larger than the sum of its proper divisors (132479).

4376990557 is an equidigital number, since it uses as much as digits as its factorization.

4376990557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132478.

The product of its (nonzero) digits is 7144200, while the sum is 55.

The square root of 4376990557 is about 66158.8282619939. The cubic root of 4376990557 is about 1635.7811648728.

The spelling of 4376990557 in words is "four billion, three hundred seventy-six million, nine hundred ninety thousand, five hundred fifty-seven".