870497 has 2 divisors, whose sum is σ = 870498. Its totient is φ = 870496.

The previous prime is 870491. The next prime is 870517. The reversal of 870497 is 794078.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 707281 + 163216 = 841^2 + 404^2 .

It is a cyclic number.

It is not a de Polignac number, because 870497 - 2⁶ = 870433 is a prime.

It is not a weakly prime, because it can be changed into another prime (870491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435248 + 435249.

It is an arithmetic number, because the mean of its divisors is an integer number (435249).

2⁸⁷⁰⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

870497 is a deficient number, since it is larger than the sum of its proper divisors (1).

870497 is an equidigital number, since it uses as much as digits as its factorization.

870497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 870497 is about 933.0042872356. The cubic root of 870497 is about 95.4822020322.

The spelling of 870497 in words is "eight hundred seventy thousand, four hundred ninety-seven".