36520769 has 4 divisors (see below), whose sum is σ = 36541440. Its totient is φ = 36500100.

The previous prime is 36520753. The next prime is 36520787. The reversal of 36520769 is 96702563.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96702563 = 1777 ⋅54419.

It is a cyclic number.

It is not a de Polignac number, because 36520769 - 2⁴ = 36520753 is a prime.

It is a super-2 number, since 2×36520769² = 2667533136702722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36520069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7409 + ... + 11310.

It is an arithmetic number, because the mean of its divisors is an integer number (9135360).

Almost surely, 2^36520769 is an apocalyptic number.

It is an amenable number.

36520769 is a deficient number, since it is larger than the sum of its proper divisors (20671).

36520769 is a wasteful number, since it uses less digits than its factorization.

36520769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20670.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 36520769 is about 6043.2415970239. The cubic root of 36520769 is about 331.7772765875. Note that the first 3 decimals are identical.

The spelling of 36520769 in words is "thirty-six million, five hundred twenty thousand, seven hundred sixty-nine".