870471 has 24 divisors (see below), whose sum is σ = 1476384. Its totient is φ = 483840.

The previous prime is 870461. The next prime is 870479. The reversal of 870471 is 174078.

It is not a de Polignac number, because 870471 - 2⁶ = 870407 is a prime.

It is a super-3 number, since 3×870471³ = 1978719236428491333, which contains 333 as substring.

870471 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870479) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2415 + ... + 2751.

It is an arithmetic number, because the mean of its divisors is an integer number (61516).

2⁸⁷⁰⁴⁷¹ is an apocalyptic number.

870471 is a deficient number, since it is larger than the sum of its proper divisors (605913).

870471 is a wasteful number, since it uses less digits than its factorization.

870471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 388 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 870471 is about 932.9903536479. The cubic root of 870471 is about 95.4812514021.

The spelling of 870471 in words is "eight hundred seventy thousand, four hundred seventy-one".