869247210 has 64 divisors (see below), whose sum is σ = 2251089792. Its totient is φ = 213547776.

The previous prime is 869247209. The next prime is 869247217. The reversal of 869247210 is 12742968.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (869247217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 227032 + ... + 230828.

It is an arithmetic number, because the mean of its divisors is an integer number (35173278).

Almost surely, 2^869247210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 869247210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1125544896).

869247210 is an abundant number, since it is smaller than the sum of its proper divisors (1381842582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

869247210 is a wasteful number, since it uses less digits than its factorization.

869247210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4407.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 869247210 is about 29482.9986602449. The cubic root of 869247210 is about 954.3648490876.

The spelling of 869247210 in words is "eight hundred sixty-nine million, two hundred forty-seven thousand, two hundred ten".