1042385797 has 2 divisors, whose sum is σ = 1042385798. Its totient is φ = 1042385796.

The previous prime is 1042385779. The next prime is 1042385801. The reversal of 1042385797 is 7975832401.

It is a Cunningham number, because it is equal to 32286²+1.

Together with previous prime (1042385779) 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., 1042385796 + 1 = 32286^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042385797 - 2¹⁵ = 1042353029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042385717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521192898 + 521192899.

It is an arithmetic number, because the mean of its divisors is an integer number (521192899).

Almost surely, 2^1042385797 is an apocalyptic number.

It is an amenable number.

1042385797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042385797 is an equidigital number, since it uses as much as digits as its factorization.

1042385797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 1042385797 is about 32286.0000154866. Note that the first 4 decimals coincide. The cubic root of 1042385797 is about 1013.9335533852.

The spelling of 1042385797 in words is "one billion, forty-two million, three hundred eighty-five thousand, seven hundred ninety-seven".