20482897 has 4 divisors (see below), whose sum is σ = 20589220. Its totient is φ = 20376576.

The previous prime is 20482879. The next prime is 20482907. The reversal of 20482897 is 79828402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7349521 + 13133376 = 2711^2 + 3624^2 .

It is a cyclic number.

It is not a de Polignac number, because 20482897 - 2⁷ = 20482769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20482837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52872 + ... + 53257.

It is an arithmetic number, because the mean of its divisors is an integer number (5147305).

Almost surely, 2^20482897 is an apocalyptic number.

It is an amenable number.

20482897 is a deficient number, since it is larger than the sum of its proper divisors (106323).

20482897 is a wasteful number, since it uses less digits than its factorization.

20482897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106322.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 20482897 is about 4525.8034645795. The cubic root of 20482897 is about 273.6090513817.

The spelling of 20482897 in words is "twenty million, four hundred eighty-two thousand, eight hundred ninety-seven".