872661070 has 16 divisors (see below), whose sum is σ = 1653463440. Its totient is φ = 330692544.

The previous prime is 872661047. The next prime is 872661073. The reversal of 872661070 is 70166278.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872661073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2296287 + ... + 2296666.

It is an arithmetic number, because the mean of its divisors is an integer number (103341465).

Almost surely, 2^872661070 is an apocalyptic number.

872661070 is a deficient number, since it is larger than the sum of its proper divisors (780802370).

872661070 is a wasteful number, since it uses less digits than its factorization.

872661070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4592979.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 872661070 is about 29540.8373273338. The cubic root of 872661070 is about 955.6126000188.

It can be divided in two parts, 8726 and 61070, that added together give a palindrome (69796).

The spelling of 872661070 in words is "eight hundred seventy-two million, six hundred sixty-one thousand, seventy".