69333989 has 2 divisors, whose sum is σ = 69333990. Its totient is φ = 69333988.

The previous prime is 69333959. The next prime is 69333997. The reversal of 69333989 is 98933396.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50481025 + 18852964 = 7105^2 + 4342^2 .

It is a cyclic number.

It is not a de Polignac number, because 69333989 - 2¹⁶ = 69268453 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 (69333959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34666994 + 34666995.

It is an arithmetic number, because the mean of its divisors is an integer number (34666995).

Almost surely, 2^69333989 is an apocalyptic number.

It is an amenable number.

69333989 is a deficient number, since it is larger than the sum of its proper divisors (1).

69333989 is an equidigital number, since it uses as much as digits as its factorization.

69333989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 944784, while the sum is 50.

The square root of 69333989 is about 8326.7033692813. The cubic root of 69333989 is about 410.8173048380.

The spelling of 69333989 in words is "sixty-nine million, three hundred thirty-three thousand, nine hundred eighty-nine".