36107721 has 16 divisors (see below), whose sum is σ = 57608320. Its totient is φ = 22219920.

The previous prime is 36107719. The next prime is 36107737. The reversal of 36107721 is 12770163.

It is not a de Polignac number, because 36107721 - 2¹ = 36107719 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36107741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51085 + ... + 51786.

It is an arithmetic number, because the mean of its divisors is an integer number (3600520).

Almost surely, 2^36107721 is an apocalyptic number.

It is an amenable number.

36107721 is a deficient number, since it is larger than the sum of its proper divisors (21500599).

36107721 is a wasteful number, since it uses less digits than its factorization.

36107721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102893 (or 102887 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 36107721 is about 6008.9700448579. The cubic root of 36107721 is about 330.5217366725.

Adding to 36107721 its reverse (12770163), we get a palindrome (48877884).

The spelling of 36107721 in words is "thirty-six million, one hundred seven thousand, seven hundred twenty-one".