36621961 has 8 divisors (see below), whose sum is σ = 38928384. Its totient is φ = 34332480.

The previous prime is 36621953. The next prime is 36621973. The reversal of 36621961 is 16912663.

36621961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 36621961 - 2³ = 36621953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36621941) 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 7 ways as a sum of consecutive naturals, for example, 376 + ... + 8566.

It is an arithmetic number, because the mean of its divisors is an integer number (4866048).

Almost surely, 2^36621961 is an apocalyptic number.

It is an amenable number.

36621961 is a deficient number, since it is larger than the sum of its proper divisors (2306423).

36621961 is a wasteful number, since it uses less digits than its factorization.

36621961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8471.

The product of its digits is 11664, while the sum is 34.

The square root of 36621961 is about 6051.6081333807. The cubic root of 36621961 is about 332.0834242623.

The spelling of 36621961 in words is "thirty-six million, six hundred twenty-one thousand, nine hundred sixty-one".