1973806229 has 2 divisors, whose sum is σ = 1973806230. Its totient is φ = 1973806228.

The previous prime is 1973806183. The next prime is 1973806271. The reversal of 1973806229 is 9226083791.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1729728100 + 244078129 = 41590^2 + 15623^2 .

It is a cyclic number.

It is not a de Polignac number, because 1973806229 - 2¹² = 1973802133 is a prime.

It is a super-2 number, since 2×1973806229² = 7791822059278400882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1973806529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 986903114 + 986903115.

It is an arithmetic number, because the mean of its divisors is an integer number (986903115).

Almost surely, 2^1973806229 is an apocalyptic number.

It is an amenable number.

1973806229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1973806229 is an equidigital number, since it uses as much as digits as its factorization.

1973806229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 1973806229 is about 44427.5390833208. The cubic root of 1973806229 is about 1254.3965139228.

The spelling of 1973806229 in words is "one billion, nine hundred seventy-three million, eight hundred six thousand, two hundred twenty-nine".