20300497 has 8 divisors (see below), whose sum is σ = 23518976. Its totient is φ = 17161632.

The previous prime is 20300491. The next prime is 20300507. The reversal of 20300497 is 79400302.

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 20300497 - 2¹¹ = 20298449 is a prime.

It is a super-2 number, since 2×20300497² = 824220356894018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20300491) 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, 19353 + ... + 20374.

It is an arithmetic number, because the mean of its divisors is an integer number (2939872).

Almost surely, 2^20300497 is an apocalyptic number.

It is an amenable number.

20300497 is a deficient number, since it is larger than the sum of its proper divisors (3218479).

20300497 is an equidigital number, since it uses as much as digits as its factorization.

20300497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39807.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 20300497 is about 4505.6072842626. The cubic root of 20300497 is about 272.7944666321.

Adding to 20300497 its reverse (79400302), we get a palindrome (99700799).

The spelling of 20300497 in words is "twenty million, three hundred thousand, four hundred ninety-seven".