1420697 has 2 divisors, whose sum is σ = 1420698. Its totient is φ = 1420696.

The previous prime is 1420667. The next prime is 1420717. The reversal of 1420697 is 7960241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 929296 + 491401 = 964^2 + 701^2 .

It is an emirp because it is prime and its reverse (7960241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1420697 - 2⁶ = 1420633 is a prime.

It is not a weakly prime, because it can be changed into another prime (1420607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710348 + 710349.

It is an arithmetic number, because the mean of its divisors is an integer number (710349).

2^1420697 is an apocalyptic number.

It is an amenable number.

1420697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420697 is an equidigital number, since it uses as much as digits as its factorization.

1420697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 1420697 is about 1191.9299476060. The cubic root of 1420697 is about 112.4174736325.

The spelling of 1420697 in words is "one million, four hundred twenty thousand, six hundred ninety-seven".