36721779 has 8 divisors (see below), whose sum is σ = 49040640. Its totient is φ = 24442056.

The previous prime is 36721771. The next prime is 36721787. The reversal of 36721779 is 97712763.

It is an interprime number because it is at equal distance from previous prime (36721771) and next prime (36721787).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 36721779 - 2³ = 36721771 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 36721779.

It is not an unprimeable number, because it can be changed into a prime (36721771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7519 + ... + 11400.

It is an arithmetic number, because the mean of its divisors is an integer number (6130080).

Almost surely, 2^36721779 is an apocalyptic number.

36721779 is a deficient number, since it is larger than the sum of its proper divisors (12318861).

36721779 is a wasteful number, since it uses less digits than its factorization.

36721779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19569.

The product of its digits is 111132, while the sum is 42.

The square root of 36721779 is about 6059.8497506126. The cubic root of 36721779 is about 332.3848629940.

The spelling of 36721779 in words is "thirty-six million, seven hundred twenty-one thousand, seven hundred seventy-nine".