363798989 has 2 divisors, whose sum is σ = 363798990. Its totient is φ = 363798988.

The previous prime is 363798923. The next prime is 363799003. The reversal of 363798989 is 989897363.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209294089 + 154504900 = 14467^2 + 12430^2 .

It is a cyclic number.

It is not a de Polignac number, because 363798989 - 2¹⁶ = 363733453 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (363798089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181899494 + 181899495.

It is an arithmetic number, because the mean of its divisors is an integer number (181899495).

Almost surely, 2^363798989 is an apocalyptic number.

It is an amenable number.

363798989 is a deficient number, since it is larger than the sum of its proper divisors (1).

363798989 is an equidigital number, since it uses as much as digits as its factorization.

363798989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17635968, while the sum is 62.

The square root of 363798989 is about 19073.5153812820. The cubic root of 363798989 is about 713.8722430415.

The spelling of 363798989 in words is "three hundred sixty-three million, seven hundred ninety-eight thousand, nine hundred eighty-nine".