20602801 has 2 divisors, whose sum is σ = 20602802. Its totient is φ = 20602800.

The previous prime is 20602739. The next prime is 20602807. The reversal of 20602801 is 10820602.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11458225 + 9144576 = 3385^2 + 3024^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20602801 is a prime.

It is not a weakly prime, because it can be changed into another prime (20602807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10301400 + 10301401.

It is an arithmetic number, because the mean of its divisors is an integer number (10301401).

Almost surely, 2^20602801 is an apocalyptic number.

It is an amenable number.

20602801 is a deficient number, since it is larger than the sum of its proper divisors (1).

20602801 is an equidigital number, since it uses as much as digits as its factorization.

20602801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 20602801 is about 4539.0308436934. The cubic root of 20602801 is about 274.1419026278.

The spelling of 20602801 in words is "twenty million, six hundred two thousand, eight hundred one".