859039945 has 8 divisors (see below), whose sum is σ = 1031136840. Its totient is φ = 687039360.

The previous prime is 859039927. The next prime is 859039963. The reversal of 859039945 is 549930958.

It is an interprime number because it is at equal distance from previous prime (859039927) and next prime (859039963).

It can be written as a sum of positive squares in 4 ways, for example, as 372219849 + 486820096 = 19293^2 + 22064^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 859039945 - 2¹³ = 859031753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 859039892 and 859039901.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2730 + ... + 41539.

It is an arithmetic number, because the mean of its divisors is an integer number (128892105).

Almost surely, 2^859039945 is an apocalyptic number.

It is an amenable number.

859039945 is a deficient number, since it is larger than the sum of its proper divisors (172096895).

859039945 is a wasteful number, since it uses less digits than its factorization.

859039945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48155.

The product of its (nonzero) digits is 1749600, while the sum is 52.

The square root of 859039945 is about 29309.3832244897. The cubic root of 859039945 is about 950.6145405122.

The spelling of 859039945 in words is "eight hundred fifty-nine million, thirty-nine thousand, nine hundred forty-five".