36681479 has 4 divisors (see below), whose sum is σ = 37461984. Its totient is φ = 35900976.

The previous prime is 36681431. The next prime is 36681487. The reversal of 36681479 is 97418663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97418663 = 1091 ⋅89293.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36681479 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36681499) 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, 390182 + ... + 390275.

It is an arithmetic number, because the mean of its divisors is an integer number (9365496).

Almost surely, 2^36681479 is an apocalyptic number.

36681479 is a deficient number, since it is larger than the sum of its proper divisors (780505).

36681479 is an equidigital number, since it uses as much as digits as its factorization.

36681479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780504.

The product of its digits is 217728, while the sum is 44.

The square root of 36681479 is about 6056.5236728671. The cubic root of 36681479 is about 332.2632275191.

The spelling of 36681479 in words is "thirty-six million, six hundred eighty-one thousand, four hundred seventy-nine".