870679 has 2 divisors, whose sum is σ = 870680. Its totient is φ = 870678.

The previous prime is 870643. The next prime is 870691. The reversal of 870679 is 976078.

870679 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 870679 - 2¹³ = 862487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (870629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435339 + 435340.

It is an arithmetic number, because the mean of its divisors is an integer number (435340).

2⁸⁷⁰⁶⁷⁹ is an apocalyptic number.

870679 is a deficient number, since it is larger than the sum of its proper divisors (1).

870679 is an equidigital number, since it uses as much as digits as its factorization.

870679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 870679 is about 933.1018165238. The cubic root of 870679 is about 95.4888559130.

The spelling of 870679 in words is "eight hundred seventy thousand, six hundred seventy-nine".