36812789 has 4 divisors (see below), whose sum is σ = 39644556. Its totient is φ = 33981024.

The previous prime is 36812777. The next prime is 36812791. The reversal of 36812789 is 98721863.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14326225 + 22486564 = 3785^2 + 4742^2 .

It is a cyclic number.

It is not a de Polignac number, because 36812789 - 2⁸ = 36812533 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 (36812749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1415864 + ... + 1415889.

It is an arithmetic number, because the mean of its divisors is an integer number (9911139).

Almost surely, 2^36812789 is an apocalyptic number.

It is an amenable number.

36812789 is a deficient number, since it is larger than the sum of its proper divisors (2831767).

36812789 is a wasteful number, since it uses less digits than its factorization.

36812789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2831766.

The product of its digits is 145152, while the sum is 44.

The square root of 36812789 is about 6067.3543657842. The cubic root of 36812789 is about 332.6592268827.

The spelling of 36812789 in words is "thirty-six million, eight hundred twelve thousand, seven hundred eighty-nine".