20493027 has 8 divisors (see below), whose sum is σ = 30360080. Its totient is φ = 13662000.

The previous prime is 20493019. The next prime is 20493029. The reversal of 20493027 is 72039402.

It is not a de Polignac number, because 20493027 - 2³ = 20493019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 759001 = 20493027 / (2 + 0 + 4 + 9 + 3 + 0 + 2 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20493029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379474 + ... + 379527.

It is an arithmetic number, because the mean of its divisors is an integer number (3795010).

Almost surely, 2^20493027 is an apocalyptic number.

20493027 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

20493027 is a deficient number, since it is larger than the sum of its proper divisors (9867053).

20493027 is an equidigital number, since it uses as much as digits as its factorization.

20493027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759010 (or 759004 counting only the distinct ones).

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

The square root of 20493027 is about 4526.9224645448. The cubic root of 20493027 is about 273.6541492162.

The spelling of 20493027 in words is "twenty million, four hundred ninety-three thousand, twenty-seven".