36961866 has 32 divisors (see below), whose sum is σ = 82918080. Its totient is φ = 12203568.

The previous prime is 36961849. The next prime is 36961909. The reversal of 36961866 is 66816963.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2580 + ... + 8976.

It is an arithmetic number, because the mean of its divisors is an integer number (2591190).

Almost surely, 2^36961866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36961866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41459040).

36961866 is an abundant number, since it is smaller than the sum of its proper divisors (45956214).

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

36961866 is a wasteful number, since it uses less digits than its factorization.

36961866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6515 (or 6509 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 36961866 is about 6079.6271267241. The cubic root of 36961866 is about 333.1076674815.

The spelling of 36961866 in words is "thirty-six million, nine hundred sixty-one thousand, eight hundred sixty-six".