42989363 has 2 divisors, whose sum is σ = 42989364. Its totient is φ = 42989362.

The previous prime is 42989357. The next prime is 42989371. The reversal of 42989363 is 36398924.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42989363 - 2⁶ = 42989299 is a prime.

It is a super-2 number, since 2×42989363² = 3696170662291538, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42989393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21494681 + 21494682.

It is an arithmetic number, because the mean of its divisors is an integer number (21494682).

Almost surely, 2^42989363 is an apocalyptic number.

42989363 is a deficient number, since it is larger than the sum of its proper divisors (1).

42989363 is an equidigital number, since it uses as much as digits as its factorization.

42989363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 44.

The square root of 42989363 is about 6556.6274104909. The cubic root of 42989363 is about 350.3109155593.

The spelling of 42989363 in words is "forty-two million, nine hundred eighty-nine thousand, three hundred sixty-three".