36772021 has 24 divisors (see below), whose sum is σ = 44159192. Its totient is φ = 30412800.

The previous prime is 36772019. The next prime is 36772103. The reversal of 36772021 is 12027763.

It can be written as a sum of positive squares in 4 ways, for example, as 3294225 + 33477796 = 1815^2 + 5786^2 .

It is not a de Polignac number, because 36772021 - 2¹ = 36772019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36772321) 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 23 ways as a sum of consecutive naturals, for example, 152461 + ... + 152701.

Almost surely, 2^36772021 is an apocalyptic number.

It is an amenable number.

36772021 is a deficient number, since it is larger than the sum of its proper divisors (7387171).

36772021 is a wasteful number, since it uses less digits than its factorization.

36772021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 36772021 is about 6063.9938159599. The cubic root of 36772021 is about 332.5363813433.

Adding to 36772021 its reverse (12027763), we get a palindrome (48799784).

The spelling of 36772021 in words is "thirty-six million, seven hundred seventy-two thousand, twenty-one".