73808161 has 12 divisors (see below), whose sum is σ = 88820820. Its totient is φ = 61081440.

The previous prime is 73808143. The next prime is 73808177. The reversal of 73808161 is 16180837.

It can be written as a sum of positive squares in 2 ways, for example, as 16654561 + 57153600 = 4081^2 + 7560^2 .

It is not a de Polignac number, because 73808161 - 2⁵ = 73808129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73808131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24550 + ... + 27391.

It is an arithmetic number, because the mean of its divisors is an integer number (7401735).

Almost surely, 2^73808161 is an apocalyptic number.

It is an amenable number.

73808161 is a deficient number, since it is larger than the sum of its proper divisors (15012659).

73808161 is a wasteful number, since it uses less digits than its factorization.

73808161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51984 (or 51977 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 73808161 is about 8591.1676156387. The cubic root of 73808161 is about 419.4705365281.

Adding to 73808161 its reverse (16180837), we get a palindrome (89988998).

The spelling of 73808161 in words is "seventy-three million, eight hundred eight thousand, one hundred sixty-one".