36807021 has 8 divisors (see below), whose sum is σ = 54528960. Its totient is φ = 24537996.

The previous prime is 36807019. The next prime is 36807031. The reversal of 36807021 is 12070863.

It is not a de Polignac number, because 36807021 - 2¹ = 36807019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1363223 = 36807021 / (3 + 6 + 8 + 0 + 7 + 0 + 2 + 1).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36807031) 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, 681585 + ... + 681638.

It is an arithmetic number, because the mean of its divisors is an integer number (6816120).

Almost surely, 2^36807021 is an apocalyptic number.

It is an amenable number.

36807021 is a deficient number, since it is larger than the sum of its proper divisors (17721939).

36807021 is a wasteful number, since it uses less digits than its factorization.

36807021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363232 (or 1363226 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 36807021 is about 6066.8790164301. The cubic root of 36807021 is about 332.6418517739.

Adding to 36807021 its reverse (12070863), we get a palindrome (48877884).

It can be divided in two parts, 3680 and 7021, that added together give a palindrome (10701).

The spelling of 36807021 in words is "thirty-six million, eight hundred seven thousand, twenty-one".