36990686 has 4 divisors (see below), whose sum is σ = 55486032. Its totient is φ = 18495342.

The previous prime is 36990673. The next prime is 36990703. The reversal of 36990686 is 68609963.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68609963 = 3371 ⋅20353.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 36990686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9247670 + ... + 9247673.

It is an arithmetic number, because the mean of its divisors is an integer number (13871508).

Almost surely, 2^36990686 is an apocalyptic number.

36990686 is a deficient number, since it is larger than the sum of its proper divisors (18495346).

36990686 is a wasteful number, since it uses less digits than its factorization.

36990686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18495345.

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 36990686 is about 6081.9968760268. The cubic root of 36990686 is about 333.1942221746.

The spelling of 36990686 in words is "thirty-six million, nine hundred ninety thousand, six hundred eighty-six".