36990689 has 4 divisors (see below), whose sum is σ = 38266260. Its totient is φ = 35715120.

The previous prime is 36990673. The next prime is 36990703. The reversal of 36990689 is 98609963.

36990689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98609963 = 661 ⋅149183.

It can be written as a sum of positive squares in 2 ways, for example, as 31192225 + 5798464 = 5585^2 + 2408^2 .

It is a cyclic number.

It is not a de Polignac number, because 36990689 - 2⁴ = 36990673 is a prime.

It is a super-2 number, since 2×36990689² = 2736622145389442, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (36990089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 637742 + ... + 637799.

It is an arithmetic number, because the mean of its divisors is an integer number (9566565).

Almost surely, 2^36990689 is an apocalyptic number.

It is an amenable number.

36990689 is a deficient number, since it is larger than the sum of its proper divisors (1275571).

36990689 is a wasteful number, since it uses less digits than its factorization.

36990689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275570.

The product of its (nonzero) digits is 629856, while the sum is 50.

The square root of 36990689 is about 6081.9971226563. The cubic root of 36990689 is about 333.1942311821.

The spelling of 36990689 in words is "thirty-six million, nine hundred ninety thousand, six hundred eighty-nine".