1420770797 has 2 divisors, whose sum is σ = 1420770798. Its totient is φ = 1420770796.

The previous prime is 1420770779. The next prime is 1420770803. The reversal of 1420770797 is 7970770241.

Together with previous prime (1420770779) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1155048196 + 265722601 = 33986^2 + 16301^2 .

It is a cyclic number.

It is not a de Polignac number, because 1420770797 - 2¹⁶ = 1420705261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420770707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710385398 + 710385399.

It is an arithmetic number, because the mean of its divisors is an integer number (710385399).

Almost surely, 2^1420770797 is an apocalyptic number.

It is an amenable number.

1420770797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420770797 is an equidigital number, since it uses as much as digits as its factorization.

1420770797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172872, while the sum is 44.

The square root of 1420770797 is about 37693.1133895835. The cubic root of 1420770797 is about 1124.1942007819.

The spelling of 1420770797 in words is "one billion, four hundred twenty million, seven hundred seventy thousand, seven hundred ninety-seven".