3923777444 has 12 divisors (see below), whose sum is σ = 6901467804. Its totient is φ = 1951929504.

The previous prime is 3923777423. The next prime is 3923777447. The reversal of 3923777444 is 4447773293.

It can be written as a sum of positive squares in 2 ways, for example, as 2788896100 + 1134881344 = 52810^2 + 33688^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3923777392 and 3923777401.

It is not an unprimeable number, because it can be changed into a prime (3923777447) 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, 2488919 + ... + 2490494.

It is an arithmetic number, because the mean of its divisors is an integer number (575122317).

Almost surely, 2^3923777444 is an apocalyptic number.

It is an amenable number.

3923777444 is a deficient number, since it is larger than the sum of its proper divisors (2977690360).

3923777444 is a wasteful number, since it uses less digits than its factorization.

3923777444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4979614 (or 4979612 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 50.

The square root of 3923777444 is about 62640.0626117184. The cubic root of 3923777444 is about 1577.2533388697.

The spelling of 3923777444 in words is "three billion, nine hundred twenty-three million, seven hundred seventy-seven thousand, four hundred forty-four".