42196589 has 2 divisors, whose sum is σ = 42196590. Its totient is φ = 42196588.

The previous prime is 42196577. The next prime is 42196621. The reversal of 42196589 is 98569124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41499364 + 697225 = 6442^2 + 835^2 .

It is a cyclic number.

It is not a de Polignac number, because 42196589 - 2⁸ = 42196333 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42196519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21098294 + 21098295.

It is an arithmetic number, because the mean of its divisors is an integer number (21098295).

Almost surely, 2^42196589 is an apocalyptic number.

It is an amenable number.

42196589 is a deficient number, since it is larger than the sum of its proper divisors (1).

42196589 is an equidigital number, since it uses as much as digits as its factorization.

42196589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 44.

The square root of 42196589 is about 6495.8901622487. The cubic root of 42196589 is about 348.1441606671.

The spelling of 42196589 in words is "forty-two million, one hundred ninety-six thousand, five hundred eighty-nine".