36403986 has 32 divisors (see below), whose sum is σ = 76520448. Its totient is φ = 11523600.

The previous prime is 36403973. The next prime is 36404033. The reversal of 36403986 is 68930463.

36403986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 19965 + ... + 21711.

It is an arithmetic number, because the mean of its divisors is an integer number (2391264).

Almost surely, 2^36403986 is an apocalyptic number.

36403986 is an abundant number, since it is smaller than the sum of its proper divisors (40116462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

36403986 is a wasteful number, since it uses less digits than its factorization.

36403986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 36403986 is about 6033.5715790898. The cubic root of 36403986 is about 331.4232559414.

It can be divided in two parts, 3640 and 3986, that added together give a triangular number (7626 = T₁₂₃).

The spelling of 36403986 in words is "thirty-six million, four hundred three thousand, nine hundred eighty-six".