20240797 has 4 divisors (see below), whose sum is σ = 20251036. Its totient is φ = 20230560.

The previous prime is 20240789. The next prime is 20240807. The reversal of 20240797 is 79704202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2042041 + 18198756 = 1429^2 + 4266^2 .

It is a cyclic number.

It is not a de Polignac number, because 20240797 - 2³ = 20240789 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 (20240777) 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, 1104 + ... + 6457.

It is an arithmetic number, because the mean of its divisors is an integer number (5062759).

Almost surely, 2^20240797 is an apocalyptic number.

It is an amenable number.

20240797 is a deficient number, since it is larger than the sum of its proper divisors (10239).

20240797 is an equidigital number, since it uses as much as digits as its factorization.

20240797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10238.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 20240797 is about 4498.9773282381. The cubic root of 20240797 is about 272.5267914068.

Adding to 20240797 its reverse (79704202), we get a palindrome (99944999).

The spelling of 20240797 in words is "twenty million, two hundred forty thousand, seven hundred ninety-seven".