869645004 has 24 divisors (see below), whose sum is σ = 2029656048. Its totient is φ = 289812480.

The previous prime is 869644999. The next prime is 869645009. The reversal of 869645004 is 400546968.

It is an interprime number because it is at equal distance from previous prime (869644999) and next prime (869645009).

It is not an unprimeable number, because it can be changed into a prime (869645009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80364 + ... + 90540.

It is an arithmetic number, because the mean of its divisors is an integer number (84569002).

Almost surely, 2^869645004 is an apocalyptic number.

It is an amenable number.

869645004 is an abundant number, since it is smaller than the sum of its proper divisors (1160011044).

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

869645004 is a wasteful number, since it uses less digits than its factorization.

869645004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17305 (or 17303 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 869645004 is about 29489.7440477194. The cubic root of 869645004 is about 954.5104090271.

The spelling of 869645004 in words is "eight hundred sixty-nine million, six hundred forty-five thousand, four".