870453 has 16 divisors (see below), whose sum is σ = 1306240. Its totient is φ = 572832.

The previous prime is 870437. The next prime is 870461. The reversal of 870453 is 354078.

It is not a de Polignac number, because 870453 - 2⁴ = 870437 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 870453.

It is not an unprimeable number, because it can be changed into a prime (870403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2625 + ... + 2937.

It is an arithmetic number, because the mean of its divisors is an integer number (81640).

2⁸⁷⁰⁴⁵³ is an apocalyptic number.

It is an amenable number.

870453 is a deficient number, since it is larger than the sum of its proper divisors (435787).

870453 is a wasteful number, since it uses less digits than its factorization.

870453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 870453 is about 932.9807071960. The cubic root of 870453 is about 95.4805932624.

The spelling of 870453 in words is "eight hundred seventy thousand, four hundred fifty-three".