42650617 has 2 divisors, whose sum is σ = 42650618. Its totient is φ = 42650616.

The previous prime is 42650591. The next prime is 42650627. The reversal of 42650617 is 71605624.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34292736 + 8357881 = 5856^2 + 2891^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42650617 is a prime.

It is not a weakly prime, because it can be changed into another prime (42650627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21325308 + 21325309.

It is an arithmetic number, because the mean of its divisors is an integer number (21325309).

Almost surely, 2^42650617 is an apocalyptic number.

It is an amenable number.

42650617 is a deficient number, since it is larger than the sum of its proper divisors (1).

42650617 is an equidigital number, since it uses as much as digits as its factorization.

42650617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 42650617 is about 6530.7439851827. The cubic root of 42650617 is about 349.3883657893.

The spelling of 42650617 in words is "forty-two million, six hundred fifty thousand, six hundred seventeen".