870437 has 2 divisors, whose sum is σ = 870438. Its totient is φ = 870436.

The previous prime is 870433. The next prime is 870461. The reversal of 870437 is 734078.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 863041 + 7396 = 929^2 + 86^2 .

It is a cyclic number.

It is not a de Polignac number, because 870437 - 2² = 870433 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (870431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435218 + 435219.

It is an arithmetic number, because the mean of its divisors is an integer number (435219).

2⁸⁷⁰⁴³⁷ is an apocalyptic number.

It is an amenable number.

870437 is a deficient number, since it is larger than the sum of its proper divisors (1).

870437 is an equidigital number, since it uses as much as digits as its factorization.

870437 is an evil number, because the sum of its binary digits is even.

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

The square root of 870437 is about 932.9721324884. The cubic root of 870437 is about 95.4800082418.

The spelling of 870437 in words is "eight hundred seventy thousand, four hundred thirty-seven".