1983479770 has 16 divisors (see below), whose sum is σ = 3573502920. Its totient is φ = 792672064.

The previous prime is 1983479761. The next prime is 1983479779. The reversal of 1983479770 is 779743891.

It is an interprime number because it is at equal distance from previous prime (1983479761) and next prime (1983479779).

It can be written as a sum of positive squares in 4 ways, for example, as 1072104049 + 911375721 = 32743^2 + 30189^2 .

It is not an unprimeable number, because it can be changed into a prime (1983479779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78337 + ... + 100516.

Almost surely, 2^1983479770 is an apocalyptic number.

1983479770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1983479770 is a deficient number, since it is larger than the sum of its proper divisors (1590023150).

1983479770 is a wasteful number, since it uses less digits than its factorization.

1983479770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179969.

The product of its (nonzero) digits is 2667168, while the sum is 55.

The square root of 1983479770 is about 44536.2747656335. The cubic root of 1983479770 is about 1256.4424233680.

The spelling of 1983479770 in words is "one billion, nine hundred eighty-three million, four hundred seventy-nine thousand, seven hundred seventy".