869497506 has 12 divisors (see below), whose sum is σ = 1883911302. Its totient is φ = 289832496.

The previous prime is 869497483. The next prime is 869497529. The reversal of 869497506 is 605794968.

It is an interprime number because it is at equal distance from previous prime (869497483) and next prime (869497529).

It can be written as a sum of positive squares in only one way, i.e., 791015625 + 78481881 = 28125^2 + 8859^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24152691 + ... + 24152726.

Almost surely, 2^869497506 is an apocalyptic number.

869497506 is an abundant number, since it is smaller than the sum of its proper divisors (1014413796).

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

869497506 is a wasteful number, since it uses less digits than its factorization.

869497506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48305425 (or 48305422 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The square root of 869497506 is about 29487.2431061298. The cubic root of 869497506 is about 954.4564420498.

The spelling of 869497506 in words is "eight hundred sixty-nine million, four hundred ninety-seven thousand, five hundred six".