3994570773 has 54 divisors (see below), whose sum is σ = 6198966774. Its totient is φ = 2478307104.

The previous prime is 3994570757. The next prime is 3994570777. The reversal of 3994570773 is 3770754993.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3974293764 + 20277009 = 63042^2 + 4503^2 .

It is not a de Polignac number, because 3994570773 - 2⁴ = 3994570757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3994570777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 20276911 + ... + 20277107.

It is an arithmetic number, because the mean of its divisors is an integer number (114795681).

Almost surely, 2^3994570773 is an apocalyptic number.

It is an amenable number.

3994570773 is a deficient number, since it is larger than the sum of its proper divisors (2204396001).

3994570773 is a wasteful number, since it uses less digits than its factorization.

3994570773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 5000940, while the sum is 54.

The square root of 3994570773 is about 63202.6168208248. The cubic root of 3994570773 is about 1586.6825300643.

The spelling of 3994570773 in words is "three billion, nine hundred ninety-four million, five hundred seventy thousand, seven hundred seventy-three".