69738989 has 2 divisors, whose sum is σ = 69738990. Its totient is φ = 69738988.

The previous prime is 69738983. The next prime is 69739031. The reversal of 69738989 is 98983796.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58782889 + 10956100 = 7667^2 + 3310^2 .

It is a cyclic number.

It is not a de Polignac number, because 69738989 - 2¹⁶ = 69673453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69738983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34869494 + 34869495.

It is an arithmetic number, because the mean of its divisors is an integer number (34869495).

Almost surely, 2^69738989 is an apocalyptic number.

It is an amenable number.

69738989 is a deficient number, since it is larger than the sum of its proper divisors (1).

69738989 is an equidigital number, since it uses as much as digits as its factorization.

69738989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5878656, while the sum is 59.

The square root of 69738989 is about 8350.9873068997. The cubic root of 69738989 is about 411.6156535177.

The spelling of 69738989 in words is "sixty-nine million, seven hundred thirty-eight thousand, nine hundred eighty-nine".