876730945 has 4 divisors (see below), whose sum is σ = 1052077140. Its totient is φ = 701384752.

The previous prime is 876730891. The next prime is 876731017. The reversal of 876730945 is 549037678.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 554743809 + 321987136 = 23553^2 + 17944^2 .

It is a cyclic number.

It is not a de Polignac number, because 876730945 - 2²⁹ = 339860033 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87673090 + ... + 87673099.

It is an arithmetic number, because the mean of its divisors is an integer number (263019285).

Almost surely, 2^876730945 is an apocalyptic number.

It is an amenable number.

876730945 is a deficient number, since it is larger than the sum of its proper divisors (175346195).

876730945 is a wasteful number, since it uses less digits than its factorization.

876730945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175346194.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The square root of 876730945 is about 29609.6427705570. The cubic root of 876730945 is about 957.0958766521.

The spelling of 876730945 in words is "eight hundred seventy-six million, seven hundred thirty thousand, nine hundred forty-five".