36521793 has 48 divisors (see below), whose sum is σ = 68010880. Its totient is φ = 18960480.

The previous prime is 36521789. The next prime is 36521801. The reversal of 36521793 is 39712563.

36521793 = 392² + 393² + ... + 553².

It is not a de Polignac number, because 36521793 - 2² = 36521789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36521753) 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 47 ways as a sum of consecutive naturals, for example, 22071 + ... + 23667.

Almost surely, 2^36521793 is an apocalyptic number.

36521793 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

36521793 is a deficient number, since it is larger than the sum of its proper divisors (31489087).

36521793 is a wasteful number, since it uses less digits than its factorization.

36521793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635 (or 1618 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 36521793 is about 6043.3263191722. The cubic root of 36521793 is about 331.7803774419.

It can be divided in two parts, 3652 and 1793, that added together give a palindrome (5445).

The spelling of 36521793 in words is "thirty-six million, five hundred twenty-one thousand, seven hundred ninety-three".