1983474653 has 2 divisors, whose sum is σ = 1983474654. Its totient is φ = 1983474652.

The previous prime is 1983474637. The next prime is 1983474659. The reversal of 1983474653 is 3564743891.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1471719769 + 511754884 = 38363^2 + 22622^2 .

It is a cyclic number.

It is not a de Polignac number, because 1983474653 - 2⁴ = 1983474637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1983474659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991737326 + 991737327.

It is an arithmetic number, because the mean of its divisors is an integer number (991737327).

Almost surely, 2^1983474653 is an apocalyptic number.

It is an amenable number.

1983474653 is a deficient number, since it is larger than the sum of its proper divisors (1).

1983474653 is an equidigital number, since it uses as much as digits as its factorization.

1983474653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 50.

The square root of 1983474653 is about 44536.2173180435. The cubic root of 1983474653 is about 1256.4413429064.

The spelling of 1983474653 in words is "one billion, nine hundred eighty-three million, four hundred seventy-four thousand, six hundred fifty-three".