36721349 has 4 divisors (see below), whose sum is σ = 41967264. Its totient is φ = 31475436.

The previous prime is 36721331. The next prime is 36721351. The reversal of 36721349 is 94312763.

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: 94312763 = 461 ⋅204583.

It is a cyclic number.

It is not a de Polignac number, because 36721349 - 2⁸ = 36721093 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a zygodrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36721249) 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, 2622947 + ... + 2622960.

It is an arithmetic number, because the mean of its divisors is an integer number (10491816).

Almost surely, 2^36721349 is an apocalyptic number.

It is an amenable number.

36721349 is a deficient number, since it is larger than the sum of its proper divisors (5245915).

36721349 is an equidigital number, since it uses as much as digits as its factorization.

36721349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5245914.

The product of its digits is 27216, while the sum is 35.

The square root of 36721349 is about 6059.8142710813. The cubic root of 36721349 is about 332.3835656163.

The spelling of 36721349 in words is "thirty-six million, seven hundred twenty-one thousand, three hundred forty-nine".