340872887 has 2 divisors, whose sum is σ = 340872888. Its totient is φ = 340872886.

The previous prime is 340872877. The next prime is 340872907. The reversal of 340872887 is 788278043.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340872887 - 2¹⁰ = 340871863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340872827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170436443 + 170436444.

It is an arithmetic number, because the mean of its divisors is an integer number (170436444).

Almost surely, 2^340872887 is an apocalyptic number.

340872887 is a deficient number, since it is larger than the sum of its proper divisors (1).

340872887 is an equidigital number, since it uses as much as digits as its factorization.

340872887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 602112, while the sum is 47.

The square root of 340872887 is about 18462.7432143764. The cubic root of 340872887 is about 698.5499827850.

The spelling of 340872887 in words is "three hundred forty million, eight hundred seventy-two thousand, eight hundred eighty-seven".