870289929 has 24 divisors (see below), whose sum is σ = 1286543232. Its totient is φ = 566650080.

The previous prime is 870289909. The next prime is 870289933. The reversal of 870289929 is 929982078.

It is not a de Polignac number, because 870289929 - 2⁹ = 870289417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (870289909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 226942 + ... + 230744.

It is an arithmetic number, because the mean of its divisors is an integer number (53605968).

Almost surely, 2^870289929 is an apocalyptic number.

It is an amenable number.

870289929 is a deficient number, since it is larger than the sum of its proper divisors (416253303).

870289929 is a wasteful number, since it uses less digits than its factorization.

870289929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4397 (or 4394 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 870289929 is about 29500.6767549492. The cubic root of 870289929 is about 954.7463043303.

The spelling of 870289929 in words is "eight hundred seventy million, two hundred eighty-nine thousand, nine hundred twenty-nine".