3513889921 has 2 divisors, whose sum is σ = 3513889922. Its totient is φ = 3513889920.

The previous prime is 3513889891. The next prime is 3513889927. The reversal of 3513889921 is 1299883153.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1813482225 + 1700407696 = 42585^2 + 41236^2 .

It is a cyclic number.

It is not a de Polignac number, because 3513889921 - 2¹³ = 3513881729 is a prime.

It is not a weakly prime, because it can be changed into another prime (3513889927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1756944960 + 1756944961.

It is an arithmetic number, because the mean of its divisors is an integer number (1756944961).

Almost surely, 2^3513889921 is an apocalyptic number.

It is an amenable number.

3513889921 is a deficient number, since it is larger than the sum of its proper divisors (1).

3513889921 is an equidigital number, since it uses as much as digits as its factorization.

3513889921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 49.

The square root of 3513889921 is about 59278.0728516034. The cubic root of 3513889921 is about 1520.3003101518.

The spelling of 3513889921 in words is "three billion, five hundred thirteen million, eight hundred eighty-nine thousand, nine hundred twenty-one".