1420807 has 2 divisors, whose sum is σ = 1420808. Its totient is φ = 1420806.

The previous prime is 1420789. The next prime is 1420817. The reversal of 1420807 is 7080241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1420807 - 2¹¹ = 1418759 is a prime.

It is a zygodrome in base 3.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420817) 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, 710403 + 710404.

It is an arithmetic number, because the mean of its divisors is an integer number (710404).

2^1420807 is an apocalyptic number.

1420807 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420807 is an equidigital number, since it uses as much as digits as its factorization.

1420807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 1420807 is about 1191.9760903642. The cubic root of 1420807 is about 112.4203749321.

The spelling of 1420807 in words is "one million, four hundred twenty thousand, eight hundred seven".