36749989 has 8 divisors (see below), whose sum is σ = 38099160. Its totient is φ = 35406336.

The previous prime is 36749959. The next prime is 36750011. The reversal of 36749989 is 98994763.

It can be written as a sum of positive squares in 4 ways, for example, as 1144900 + 35605089 = 1070^2 + 5967^2 .

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 36749989 - 2⁵ = 36749957 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 (36749959) 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, 16129 + ... + 18265.

It is an arithmetic number, because the mean of its divisors is an integer number (4762395).

Almost surely, 2^36749989 is an apocalyptic number.

It is an amenable number.

36749989 is a deficient number, since it is larger than the sum of its proper divisors (1349171).

36749989 is a wasteful number, since it uses less digits than its factorization.

36749989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2759.

The product of its digits is 2939328, while the sum is 55.

The square root of 36749989 is about 6062.1769192263. The cubic root of 36749989 is about 332.4699548859.

The spelling of 36749989 in words is "thirty-six million, seven hundred forty-nine thousand, nine hundred eighty-nine".