302063989 has 2 divisors, whose sum is σ = 302063990. Its totient is φ = 302063988.

The previous prime is 302063987. The next prime is 302064001. The reversal of 302063989 is 989360203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 263412900 + 38651089 = 16230^2 + 6217^2 .

It is a cyclic number.

It is not a de Polignac number, because 302063989 - 2¹ = 302063987 is a prime.

Together with 302063987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (302063987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151031994 + 151031995.

It is an arithmetic number, because the mean of its divisors is an integer number (151031995).

Almost surely, 2^302063989 is an apocalyptic number.

It is an amenable number.

302063989 is a deficient number, since it is larger than the sum of its proper divisors (1).

302063989 is an equidigital number, since it uses as much as digits as its factorization.

302063989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 302063989 is about 17379.9881760604. The cubic root of 302063989 is about 670.9646674315.

The spelling of 302063989 in words is "three hundred two million, sixty-three thousand, nine hundred eighty-nine".