1469729 has 2 divisors, whose sum is σ = 1469730. Its totient is φ = 1469728.

The previous prime is 1469717. The next prime is 1469731. The reversal of 1469729 is 9279641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1081600 + 388129 = 1040^2 + 623^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1469729 is a prime.

Together with 1469731, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1469692 and 1469701.

It is not a weakly prime, because it can be changed into another prime (1469129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 734864 + 734865.

It is an arithmetic number, because the mean of its divisors is an integer number (734865).

2^1469729 is an apocalyptic number.

It is an amenable number.

1469729 is a deficient number, since it is larger than the sum of its proper divisors (1).

1469729 is an equidigital number, since it uses as much as digits as its factorization.

1469729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 38.

The square root of 1469729 is about 1212.3238016306. The cubic root of 1469729 is about 113.6961488851.

The spelling of 1469729 in words is "one million, four hundred sixty-nine thousand, seven hundred twenty-nine".