36026721 has 16 divisors (see below), whose sum is σ = 53467200. Its totient is φ = 23975424.

The previous prime is 36026707. The next prime is 36026737. The reversal of 36026721 is 12762063.

It is a happy number.

It is not a de Polignac number, because 36026721 - 2⁶ = 36026657 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (36026701) 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, 24865 + ... + 26273.

It is an arithmetic number, because the mean of its divisors is an integer number (3341700).

Almost surely, 2^36026721 is an apocalyptic number.

It is an amenable number.

36026721 is a deficient number, since it is larger than the sum of its proper divisors (17440479).

36026721 is a wasteful number, since it uses less digits than its factorization.

36026721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2365 (or 2359 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 36026721 is about 6002.2263369520. The cubic root of 36026721 is about 330.2743998684.

Adding to 36026721 its reverse (12762063), we get a palindrome (48788784).

The spelling of 36026721 in words is "thirty-six million, twenty-six thousand, seven hundred twenty-one".