36946221 has 16 divisors (see below), whose sum is σ = 53161920. Its totient is φ = 22688640.

The previous prime is 36946201. The next prime is 36946223. The reversal of 36946221 is 12264963.

It is not a de Polignac number, because 36946221 - 2⁶ = 36946157 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36946223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30966 + ... + 32136.

It is an arithmetic number, because the mean of its divisors is an integer number (3322620).

Almost surely, 2^36946221 is an apocalyptic number.

It is an amenable number.

36946221 is a deficient number, since it is larger than the sum of its proper divisors (16215699).

36946221 is a wasteful number, since it uses less digits than its factorization.

36946221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996.

The product of its digits is 15552, while the sum is 33.

The square root of 36946221 is about 6078.3403162376. The cubic root of 36946221 is about 333.0606622345.

The spelling of 36946221 in words is "thirty-six million, nine hundred forty-six thousand, two hundred twenty-one".