442679093 has 2 divisors, whose sum is σ = 442679094. Its totient is φ = 442679092.

The previous prime is 442679059. The next prime is 442679143. The reversal of 442679093 is 390976244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 286354084 + 156325009 = 16922^2 + 12503^2 .

It is a cyclic number.

It is not a de Polignac number, because 442679093 - 2⁸ = 442678837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442679893) 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, 221339546 + 221339547.

It is an arithmetic number, because the mean of its divisors is an integer number (221339547).

Almost surely, 2^442679093 is an apocalyptic number.

It is an amenable number.

442679093 is a deficient number, since it is larger than the sum of its proper divisors (1).

442679093 is an equidigital number, since it uses as much as digits as its factorization.

442679093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 44.

The square root of 442679093 is about 21039.9404229195. The cubic root of 442679093 is about 762.1310761396.

The spelling of 442679093 in words is "four hundred forty-two million, six hundred seventy-nine thousand, ninety-three".