872130089 has 4 divisors (see below), whose sum is σ = 885147024. Its totient is φ = 859113156.

The previous prime is 872130067. The next prime is 872130101. The reversal of 872130089 is 980031278.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 872130089 - 2⁸ = 872129833 is a prime.

It is a super-2 number, since 2×872130089² = 1521221784278295842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (872130689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6508367 + ... + 6508500.

It is an arithmetic number, because the mean of its divisors is an integer number (221286756).

Almost surely, 2^872130089 is an apocalyptic number.

It is an amenable number.

872130089 is a deficient number, since it is larger than the sum of its proper divisors (13016935).

872130089 is a wasteful number, since it uses less digits than its factorization.

872130089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13016934.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 872130089 is about 29531.8487230312. The cubic root of 872130089 is about 955.4187427471.

The spelling of 872130089 in words is "eight hundred seventy-two million, one hundred thirty thousand, eighty-nine".