3557979893 has 4 divisors (see below), whose sum is σ = 3831670668. Its totient is φ = 3284289120.

The previous prime is 3557979883. The next prime is 3557979899. The reversal of 3557979893 is 3989797553.

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 1139602564 + 2418377329 = 33758^2 + 49177^2 .

It is a cyclic number.

It is not a de Polignac number, because 3557979893 - 2¹⁰ = 3557978869 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 (3557979899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136845368 + ... + 136845393.

It is an arithmetic number, because the mean of its divisors is an integer number (957917667).

Almost surely, 2^3557979893 is an apocalyptic number.

It is an amenable number.

3557979893 is a deficient number, since it is larger than the sum of its proper divisors (273690775).

3557979893 is a wasteful number, since it uses less digits than its factorization.

3557979893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273690774.

The product of its digits is 64297800, while the sum is 65.

The square root of 3557979893 is about 59648.8046233954. The cubic root of 3557979893 is about 1526.6324746246.

The spelling of 3557979893 in words is "three billion, five hundred fifty-seven million, nine hundred seventy-nine thousand, eight hundred ninety-three".