72836789 has 8 divisors (see below), whose sum is σ = 77312088. Its totient is φ = 68382720.

The previous prime is 72836767. The next prime is 72836801. The reversal of 72836789 is 98763827.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4906225 + 67930564 = 2215^2 + 8242^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72836789 - 2¹⁶ = 72771253 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 (72836389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2069 + ... + 12245.

It is an arithmetic number, because the mean of its divisors is an integer number (9664011).

Almost surely, 2^72836789 is an apocalyptic number.

It is an amenable number.

72836789 is a deficient number, since it is larger than the sum of its proper divisors (4475299).

72836789 is a wasteful number, since it uses less digits than its factorization.

72836789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10615.

The product of its digits is 1016064, while the sum is 50.

The square root of 72836789 is about 8534.4471994383. The cubic root of 72836789 is about 417.6222195873.

The spelling of 72836789 in words is "seventy-two million, eight hundred thirty-six thousand, seven hundred eighty-nine".