42450797 has 2 divisors, whose sum is σ = 42450798. Its totient is φ = 42450796.

The previous prime is 42450791. The next prime is 42450817. The reversal of 42450797 is 79705424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41615401 + 835396 = 6451^2 + 914^2 .

It is a cyclic number.

It is not a de Polignac number, because 42450797 - 2¹⁰ = 42449773 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42450797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42450791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21225398 + 21225399.

It is an arithmetic number, because the mean of its divisors is an integer number (21225399).

Almost surely, 2^42450797 is an apocalyptic number.

It is an amenable number.

42450797 is a deficient number, since it is larger than the sum of its proper divisors (1).

42450797 is an equidigital number, since it uses as much as digits as its factorization.

42450797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 42450797 is about 6515.4276145162. The cubic root of 42450797 is about 348.8418782176.

The spelling of 42450797 in words is "forty-two million, four hundred fifty thousand, seven hundred ninety-seven".