20098877 has 2 divisors, whose sum is σ = 20098878. Its totient is φ = 20098876.

The previous prime is 20098853. The next prime is 20098889. The reversal of 20098877 is 77889002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16370116 + 3728761 = 4046^2 + 1931^2 .

It is a cyclic number.

It is not a de Polignac number, because 20098877 - 2¹⁶ = 20033341 is a prime.

It is a super-2 number, since 2×20098877² = 807929713322258, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20098817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10049438 + 10049439.

It is an arithmetic number, because the mean of its divisors is an integer number (10049439).

Almost surely, 2^20098877 is an apocalyptic number.

It is an amenable number.

20098877 is a deficient number, since it is larger than the sum of its proper divisors (1).

20098877 is an equidigital number, since it uses as much as digits as its factorization.

20098877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 20098877 is about 4483.1771100415. The cubic root of 20098877 is about 271.8883489636. Note that the first 3 decimals are identical.

The spelling of 20098877 in words is "twenty million, ninety-eight thousand, eight hundred seventy-seven".