36720071 has 4 divisors (see below), whose sum is σ = 36739392. Its totient is φ = 36700752.

The previous prime is 36720059. The next prime is 36720083. The reversal of 36720071 is 17002763.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17002763 = 1307 ⋅13009.

It is an interprime number because it is at equal distance from previous prime (36720059) and next prime (36720083).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36720071 is a prime.

It is a super-2 number, since 2×36720071² = 2696727228490082, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36720071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36720001) 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, 6455 + ... + 10728.

It is an arithmetic number, because the mean of its divisors is an integer number (9184848).

Almost surely, 2^36720071 is an apocalyptic number.

36720071 is a deficient number, since it is larger than the sum of its proper divisors (19321).

36720071 is a wasteful number, since it uses less digits than its factorization.

36720071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19320.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 36720071 is about 6059.7088213874. The cubic root of 36720071 is about 332.3797096294.

The spelling of 36720071 in words is "thirty-six million, seven hundred twenty thousand, seventy-one".