340847477 has 2 divisors, whose sum is σ = 340847478. Its totient is φ = 340847476.

The previous prime is 340847453. The next prime is 340847503. The reversal of 340847477 is 774748043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 337603876 + 3243601 = 18374^2 + 1801^2 .

It is a cyclic number.

It is not a de Polignac number, because 340847477 - 2⁶ = 340847413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340847417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170423738 + 170423739.

It is an arithmetic number, because the mean of its divisors is an integer number (170423739).

Almost surely, 2^340847477 is an apocalyptic number.

It is an amenable number.

340847477 is a deficient number, since it is larger than the sum of its proper divisors (1).

340847477 is an equidigital number, since it uses as much as digits as its factorization.

340847477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 526848, while the sum is 44.

The square root of 340847477 is about 18462.0550589581. The cubic root of 340847477 is about 698.5326248031.

The spelling of 340847477 in words is "three hundred forty million, eight hundred forty-seven thousand, four hundred seventy-seven".