870541 has 4 divisors (see below), whose sum is σ = 994912. Its totient is φ = 746172.

The previous prime is 870533. The next prime is 870547. The reversal of 870541 is 145078.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 870541 - 2³ = 870533 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a pancake number, because a pancake can be divided into 870541 parts by 1319 straight cuts.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62175 + ... + 62188.

It is an arithmetic number, because the mean of its divisors is an integer number (248728).

2⁸⁷⁰⁵⁴¹ is an apocalyptic number.

It is an amenable number.

870541 is a deficient number, since it is larger than the sum of its proper divisors (124371).

870541 is a wasteful number, since it uses less digits than its factorization.

870541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124370.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 870541 is about 933.0278666792. The cubic root of 870541 is about 95.4838107477.

The spelling of 870541 in words is "eight hundred seventy thousand, five hundred forty-one".