1983237853 has 2 divisors, whose sum is σ = 1983237854. Its totient is φ = 1983237852.

The previous prime is 1983237827. The next prime is 1983237857. The reversal of 1983237853 is 3587323891.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1061326084 + 921911769 = 32578^2 + 30363^2 .

It is a cyclic number.

It is not a de Polignac number, because 1983237853 - 2⁵ = 1983237821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1983237797 and 1983237806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1983237857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991618926 + 991618927.

It is an arithmetic number, because the mean of its divisors is an integer number (991618927).

Almost surely, 2^1983237853 is an apocalyptic number.

It is an amenable number.

1983237853 is a deficient number, since it is larger than the sum of its proper divisors (1).

1983237853 is an equidigital number, since it uses as much as digits as its factorization.

1983237853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 49.

The square root of 1983237853 is about 44533.5587282220. The cubic root of 1983237853 is about 1256.3913402254.

The spelling of 1983237853 in words is "one billion, nine hundred eighty-three million, two hundred thirty-seven thousand, eight hundred fifty-three".