42470609 has 2 divisors, whose sum is σ = 42470610. Its totient is φ = 42470608.

The previous prime is 42470599. The next prime is 42470633. The reversal of 42470609 is 90607424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23980609 + 18490000 = 4897^2 + 4300^2 .

It is a cyclic number.

It is not a de Polignac number, because 42470609 - 2¹⁶ = 42405073 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42470669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21235304 + 21235305.

It is an arithmetic number, because the mean of its divisors is an integer number (21235305).

Almost surely, 2^42470609 is an apocalyptic number.

It is an amenable number.

42470609 is a deficient number, since it is larger than the sum of its proper divisors (1).

42470609 is an equidigital number, since it uses as much as digits as its factorization.

42470609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 42470609 is about 6516.9478285467. The cubic root of 42470609 is about 348.8961385290.

The spelling of 42470609 in words is "forty-two million, four hundred seventy thousand, six hundred nine".