342090787 has 2 divisors, whose sum is σ = 342090788. Its totient is φ = 342090786.

The previous prime is 342090743. The next prime is 342090809. The reversal of 342090787 is 787090243.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 342090787 - 2¹⁵ = 342058019 is a prime.

It is a super-2 number, since 2×342090787² = 234052213100558738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (342090587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171045393 + 171045394.

It is an arithmetic number, because the mean of its divisors is an integer number (171045394).

Almost surely, 2^342090787 is an apocalyptic number.

342090787 is a deficient number, since it is larger than the sum of its proper divisors (1).

342090787 is an equidigital number, since it uses as much as digits as its factorization.

342090787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 342090787 is about 18495.6964453897. The cubic root of 342090787 is about 699.3809404383.

The spelling of 342090787 in words is "three hundred forty-two million, ninety thousand, seven hundred eighty-seven".