73811069 has 4 divisors (see below), whose sum is σ = 73832220. Its totient is φ = 73789920.

The previous prime is 73811063. The next prime is 73811077. The reversal of 73811069 is 96011837.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96011837 = 29 ⋅3310753.

It can be written as a sum of positive squares in 2 ways, for example, as 41434969 + 32376100 = 6437^2 + 5690^2 .

It is a cyclic number.

It is not a de Polignac number, because 73811069 - 2⁴ = 73811053 is a prime.

It is a super-2 number, since 2×73811069² = 10896147813845522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73811063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3962 + ... + 12779.

It is an arithmetic number, because the mean of its divisors is an integer number (18458055).

Almost surely, 2^73811069 is an apocalyptic number.

It is an amenable number.

73811069 is a deficient number, since it is larger than the sum of its proper divisors (21151).

73811069 is a wasteful number, since it uses less digits than its factorization.

73811069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21150.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 73811069 is about 8591.3368575560. The cubic root of 73811069 is about 419.4760454234.

The spelling of 73811069 in words is "seventy-three million, eight hundred eleven thousand, sixty-nine".