340022647 has 2 divisors, whose sum is σ = 340022648. Its totient is φ = 340022646.

The previous prime is 340022633. The next prime is 340022653. The reversal of 340022647 is 746220043.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 340022647 - 2¹⁹ = 339498359 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340022687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170011323 + 170011324.

It is an arithmetic number, because the mean of its divisors is an integer number (170011324).

Almost surely, 2^340022647 is an apocalyptic number.

340022647 is a deficient number, since it is larger than the sum of its proper divisors (1).

340022647 is an equidigital number, since it uses as much as digits as its factorization.

340022647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 340022647 is about 18439.7030073697. The cubic root of 340022647 is about 697.9687009608.

The spelling of 340022647 in words is "three hundred forty million, twenty-two thousand, six hundred forty-seven".