1427969 has 2 divisors, whose sum is σ = 1427970. Its totient is φ = 1427968.

The previous prime is 1427963. The next prime is 1427999. The reversal of 1427969 is 9697241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1345600 + 82369 = 1160^2 + 287^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1427969 is a prime.

It is a super-2 number, since 2×1427969² = 4078190929922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1427963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713984 + 713985.

It is an arithmetic number, because the mean of its divisors is an integer number (713985).

2^1427969 is an apocalyptic number.

It is an amenable number.

1427969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1427969 is an equidigital number, since it uses as much as digits as its factorization.

1427969 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 1427969 is about 1194.9765688079. The cubic root of 1427969 is about 112.6089545274.

The spelling of 1427969 in words is "one million, four hundred twenty-seven thousand, nine hundred sixty-nine".