69000049 has 2 divisors, whose sum is σ = 69000050. Its totient is φ = 69000048.

The previous prime is 69000047. The next prime is 69000067. The reversal of 69000049 is 94000096.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51022449 + 17977600 = 7143^2 + 4240^2 .

It is a cyclic number.

It is not a de Polignac number, because 69000049 - 2¹ = 69000047 is a prime.

It is a super-2 number, since 2×69000049² = 9522013524004802, which contains 22 as substring.

Together with 69000047, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 68999990 and 69000026.

It is not a weakly prime, because it can be changed into another prime (69000047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34500024 + 34500025.

It is an arithmetic number, because the mean of its divisors is an integer number (34500025).

Almost surely, 2^69000049 is an apocalyptic number.

It is an amenable number.

69000049 is a deficient number, since it is larger than the sum of its proper divisors (1).

69000049 is an equidigital number, since it uses as much as digits as its factorization.

69000049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 69000049 is about 8306.6268123710. The cubic root of 69000049 is about 410.1566900604.

The spelling of 69000049 in words is "sixty-nine million, forty-nine", and thus it is an aban number and an uban number.