2002199977 has 2 divisors, whose sum is σ = 2002199978. Its totient is φ = 2002199976.

The previous prime is 2002199923. The next prime is 2002199999. The reversal of 2002199977 is 7799912002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1995944976 + 6255001 = 44676^2 + 2501^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002199977 - 2¹¹ = 2002197929 is a prime.

It is not a weakly prime, because it can be changed into another prime (2002199777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001099988 + 1001099989.

It is an arithmetic number, because the mean of its divisors is an integer number (1001099989).

Almost surely, 2^2002199977 is an apocalyptic number.

It is an amenable number.

2002199977 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002199977 is an equidigital number, since it uses as much as digits as its factorization.

2002199977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 142884, while the sum is 46.

The square root of 2002199977 is about 44745.9492803539. The cubic root of 2002199977 is about 1260.3828468344.

The spelling of 2002199977 in words is "two billion, two million, one hundred ninety-nine thousand, nine hundred seventy-seven".