3964981473 has 6 divisors (see below), whose sum is σ = 5727195474. Its totient is φ = 2643320976.

The previous prime is 3964981469. The next prime is 3964981511. The reversal of 3964981473 is 3741894693.

It is a happy number.

3964981473 is a `hidden beast` number, since 3 + 9 + 6 + 498 + 147 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3964843089 + 138384 = 62967^2 + 372^2 .

It is not a de Polignac number, because 3964981473 - 2² = 3964981469 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3964981673) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 220276740 + ... + 220276757.

It is an arithmetic number, because the mean of its divisors is an integer number (954532579).

Almost surely, 2^3964981473 is an apocalyptic number.

It is an amenable number.

3964981473 is a deficient number, since it is larger than the sum of its proper divisors (1762214001).

3964981473 is a wasteful number, since it uses less digits than its factorization.

3964981473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440553503 (or 440553500 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The square root of 3964981473 is about 62968.0988517201. The cubic root of 3964981473 is about 1582.7550970510.

The spelling of 3964981473 in words is "three billion, nine hundred sixty-four million, nine hundred eighty-one thousand, four hundred seventy-three".