73828861 has 6 divisors (see below), whose sum is σ = 74596830. Its totient is φ = 73062648.

The previous prime is 73828829. The next prime is 73828901. The reversal of 73828861 is 16882837.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 67732900 + 6095961 = 8230^2 + 2469^2 .

It is not a de Polignac number, because 73828861 - 2⁵ = 73828829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73828561) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 89296 + ... + 90118.

It is an arithmetic number, because the mean of its divisors is an integer number (12432805).

Almost surely, 2^73828861 is an apocalyptic number.

It is an amenable number.

73828861 is a deficient number, since it is larger than the sum of its proper divisors (767969).

73828861 is an frugal number, since it uses more digits than its factorization.

73828861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755 (or 932 counting only the distinct ones).

The product of its digits is 129024, while the sum is 43.

The square root of 73828861 is about 8592.3722568334. The cubic root of 73828861 is about 419.5097473162.

The spelling of 73828861 in words is "seventy-three million, eight hundred twenty-eight thousand, eight hundred sixty-one".