20296481 has 2 divisors, whose sum is σ = 20296482. Its totient is φ = 20296480.

The previous prime is 20296457. The next prime is 20296483. The reversal of 20296481 is 18469202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17986081 + 2310400 = 4241^2 + 1520^2 .

It is a cyclic number.

It is not a de Polignac number, because 20296481 - 2⁶ = 20296417 is a prime.

It is a super-2 number, since 2×20296481² = 823894281966722, which contains 22 as substring.

Together with 20296483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20296483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10148240 + 10148241.

It is an arithmetic number, because the mean of its divisors is an integer number (10148241).

Almost surely, 2^20296481 is an apocalyptic number.

It is an amenable number.

20296481 is a deficient number, since it is larger than the sum of its proper divisors (1).

20296481 is an equidigital number, since it uses as much as digits as its factorization.

20296481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 20296481 is about 4505.1615953260. The cubic root of 20296481 is about 272.7764766813.

The spelling of 20296481 in words is "twenty million, two hundred ninety-six thousand, four hundred eighty-one".