36521690 has 16 divisors (see below), whose sum is σ = 66666240. Its totient is φ = 14402640.

The previous prime is 36521671. The next prime is 36521699. The reversal of 36521690 is 9612563.

It is a happy number.

36521690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×36521690² = 2667667680912200, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (36521699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25010 + ... + 26429.

It is an arithmetic number, because the mean of its divisors is an integer number (4166640).

Almost surely, 2^36521690 is an apocalyptic number.

36521690 is a deficient number, since it is larger than the sum of its proper divisors (30144550).

36521690 is a wasteful number, since it uses less digits than its factorization.

36521690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51517.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 36521690 is about 6043.3177973693. The cubic root of 36521690 is about 331.7800655422.

The spelling of 36521690 in words is "thirty-six million, five hundred twenty-one thousand, six hundred ninety".