20737065 has 16 divisors (see below), whose sum is σ = 33264000. Its totient is φ = 11031552.

The previous prime is 20737063. The next prime is 20737081. The reversal of 20737065 is 56073702.

It is not a de Polignac number, because 20737065 - 2¹ = 20737063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20737063) 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, 5196 + ... + 8274.

It is an arithmetic number, because the mean of its divisors is an integer number (2079000).

Almost surely, 2^20737065 is an apocalyptic number.

It is an amenable number.

20737065 is a deficient number, since it is larger than the sum of its proper divisors (12526935).

20737065 is a wasteful number, since it uses less digits than its factorization.

20737065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3536.

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 20737065 is about 4553.7967675337. The cubic root of 20737065 is about 274.7361215299.

The spelling of 20737065 in words is "twenty million, seven hundred thirty-seven thousand, sixty-five".