2020429997 has 2 divisors, whose sum is σ = 2020429998. Its totient is φ = 2020429996.

The previous prime is 2020429993. The next prime is 2020430033. The reversal of 2020429997 is 7999240202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1124864521 + 895565476 = 33539^2 + 29926^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020429997 - 2² = 2020429993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2020429993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010214998 + 1010214999.

It is an arithmetic number, because the mean of its divisors is an integer number (1010214999).

Almost surely, 2^2020429997 is an apocalyptic number.

It is an amenable number.

2020429997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020429997 is an equidigital number, since it uses as much as digits as its factorization.

2020429997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 2020429997 is about 44949.1935077816. The cubic root of 2020429997 is about 1264.1965552255.

The spelling of 2020429997 in words is "two billion, twenty million, four hundred twenty-nine thousand, nine hundred ninety-seven".