870554 has 4 divisors (see below), whose sum is σ = 1305834. Its totient is φ = 435276.

The previous prime is 870547. The next prime is 870577. The reversal of 870554 is 455078.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 819025 + 51529 = 905^2 + 227^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217637 + ... + 217640.

2⁸⁷⁰⁵⁵⁴ is an apocalyptic number.

870554 is a deficient number, since it is larger than the sum of its proper divisors (435280).

870554 is a wasteful number, since it uses less digits than its factorization.

870554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435279.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 870554 is about 933.0348332190. The cubic root of 870554 is about 95.4842860396.

The spelling of 870554 in words is "eight hundred seventy thousand, five hundred fifty-four".