20936495 has 8 divisors (see below), whose sum is σ = 25499184. Its totient is φ = 16498944.

The previous prime is 20936483. The next prime is 20936497. The reversal of 20936495 is 59463902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20936495 - 2⁸ = 20936239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20936497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30914 + ... + 31583.

It is an arithmetic number, because the mean of its divisors is an integer number (3187398).

Almost surely, 2^20936495 is an apocalyptic number.

20936495 is a deficient number, since it is larger than the sum of its proper divisors (4562689).

20936495 is an equidigital number, since it uses as much as digits as its factorization.

20936495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62569.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 20936495 is about 4575.6414850816. The cubic root of 20936495 is about 275.6140328968.

The spelling of 20936495 in words is "twenty million, nine hundred thirty-six thousand, four hundred ninety-five".