36720500 has 36 divisors (see below), whose sum is σ = 80494596. Its totient is φ = 14634000.

The previous prime is 36720491. The next prime is 36720503. The reversal of 36720500 is 502763.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 1175056 + 35545444 = 1084^2 + 5962^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36720503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135365 + ... + 135635.

It is an arithmetic number, because the mean of its divisors is an integer number (2235961).

Almost surely, 2^36720500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36720500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40247298).

36720500 is an abundant number, since it is smaller than the sum of its proper divisors (43774096).

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

36720500 is an equidigital number, since it uses as much as digits as its factorization.

36720500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 36720500 is about 6059.7442190244. The cubic root of 36720500 is about 332.3810040200.

The spelling of 36720500 in words is "thirty-six million, seven hundred twenty thousand, five hundred".