73385869 has 2 divisors, whose sum is σ = 73385870. Its totient is φ = 73385868.

The previous prime is 73385833. The next prime is 73385881. The reversal of 73385869 is 96858337.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71318025 + 2067844 = 8445^2 + 1438^2 .

It is a cyclic number.

It is not a de Polignac number, because 73385869 - 2⁹ = 73385357 is a prime.

It is a super-2 number, since 2×73385869² = 10770971537770322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73385269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36692934 + 36692935.

It is an arithmetic number, because the mean of its divisors is an integer number (36692935).

Almost surely, 2^73385869 is an apocalyptic number.

It is an amenable number.

73385869 is a deficient number, since it is larger than the sum of its proper divisors (1).

73385869 is an equidigital number, since it uses as much as digits as its factorization.

73385869 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 73385869 is about 8566.5552586790. Note that the first 3 decimals coincide. The cubic root of 73385869 is about 418.6690083504.

The spelling of 73385869 in words is "seventy-three million, three hundred eighty-five thousand, eight hundred sixty-nine".