36787220 has 12 divisors (see below), whose sum is σ = 77253204. Its totient is φ = 14714880.

The previous prime is 36787199. The next prime is 36787243. The reversal of 36787220 is 2278763.

It can be written as a sum of positive squares in 2 ways, for example, as 28879876 + 7907344 = 5374^2 + 2812^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 919661 + ... + 919700.

It is an arithmetic number, because the mean of its divisors is an integer number (6437767).

Almost surely, 2^36787220 is an apocalyptic number.

It is an amenable number.

36787220 is an abundant number, since it is smaller than the sum of its proper divisors (40465984).

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

36787220 is a wasteful number, since it uses less digits than its factorization.

36787220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839370 (or 1839368 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 36787220 is about 6065.2469034657. The cubic root of 36787220 is about 332.5821908485.

The spelling of 36787220 in words is "thirty-six million, seven hundred eighty-seven thousand, two hundred twenty".