42676493 has 2 divisors, whose sum is σ = 42676494. Its totient is φ = 42676492.

The previous prime is 42676483. The next prime is 42676519. The reversal of 42676493 is 39467624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39980329 + 2696164 = 6323^2 + 1642^2 .

It is a cyclic number.

It is not a de Polignac number, because 42676493 - 2¹⁴ = 42660109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42676493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42676433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21338246 + 21338247.

It is an arithmetic number, because the mean of its divisors is an integer number (21338247).

Almost surely, 2^42676493 is an apocalyptic number.

It is an amenable number.

42676493 is a deficient number, since it is larger than the sum of its proper divisors (1).

42676493 is an equidigital number, since it uses as much as digits as its factorization.

42676493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 41.

The square root of 42676493 is about 6532.7247760793. The cubic root of 42676493 is about 349.4590091256.

The spelling of 42676493 in words is "forty-two million, six hundred seventy-six thousand, four hundred ninety-three".