4473870981 has 4 divisors (see below), whose sum is σ = 5965161312. Its totient is φ = 2982580652.

The previous prime is 4473870971. The next prime is 4473871007. The reversal of 4473870981 is 1890783744.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4473870981 is a prime.

It is a super-2 number, since 2×4473870981² = 40031043109267804722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4473870971) 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, 745645161 + ... + 745645166.

It is an arithmetic number, because the mean of its divisors is an integer number (1491290328).

Almost surely, 2^4473870981 is an apocalyptic number.

It is an amenable number.

4473870981 is a deficient number, since it is larger than the sum of its proper divisors (1491290331).

4473870981 is a wasteful number, since it uses less digits than its factorization.

4473870981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491290330.

The product of its (nonzero) digits is 1354752, while the sum is 51.

The square root of 4473870981 is about 66887.0015847623. The cubic root of 4473870981 is about 1647.7620079090.

The spelling of 4473870981 in words is "four billion, four hundred seventy-three million, eight hundred seventy thousand, nine hundred eighty-one".