870028545 has 32 divisors (see below), whose sum is σ = 1433751552. Its totient is φ = 450185472.

The previous prime is 870028541. The next prime is 870028559. The reversal of 870028545 is 545820078.

870028545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 870028545 - 2² = 870028541 is a prime.

It is a super-2 number, since 2×870028545² = 1513899338229634050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (870028541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210519 + ... + 214611.

It is an arithmetic number, because the mean of its divisors is an integer number (44804736).

Almost surely, 2^870028545 is an apocalyptic number.

It is an amenable number.

870028545 is a deficient number, since it is larger than the sum of its proper divisors (563723007).

870028545 is a wasteful number, since it uses less digits than its factorization.

870028545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4521.

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 870028545 is about 29496.2462866040. The cubic root of 870028545 is about 954.6507115140.

The spelling of 870028545 in words is "eight hundred seventy million, twenty-eight thousand, five hundred forty-five".