870743 has 2 divisors, whose sum is σ = 870744. Its totient is φ = 870742.

The previous prime is 870739. The next prime is 870773. The reversal of 870743 is 347078.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 870743 - 2² = 870739 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (870703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435371 + 435372.

It is an arithmetic number, because the mean of its divisors is an integer number (435372).

2⁸⁷⁰⁷⁴³ is an apocalyptic number.

870743 is a deficient number, since it is larger than the sum of its proper divisors (1).

870743 is an equidigital number, since it uses as much as digits as its factorization.

870743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 870743 is about 933.1361101147. The cubic root of 870743 is about 95.4911955188.

The spelling of 870743 in words is "eight hundred seventy thousand, seven hundred forty-three".