976869609 has 4 divisors (see below), whose sum is σ = 1302492816. Its totient is φ = 651246404.

The previous prime is 976869601. The next prime is 976869631. The reversal of 976869609 is 906968679.

It is a happy number.

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 976869609 - 2³ = 976869601 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (976869601) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 162811599 + ... + 162811604.

It is an arithmetic number, because the mean of its divisors is an integer number (325623204).

Almost surely, 2^976869609 is an apocalyptic number.

It is an amenable number.

976869609 is a deficient number, since it is larger than the sum of its proper divisors (325623207).

976869609 is a wasteful number, since it uses less digits than its factorization.

976869609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325623206.

The product of its (nonzero) digits is 8817984, while the sum is 60.

The square root of 976869609 is about 31254.9133577427. The cubic root of 976869609 is about 992.2296476785.

The spelling of 976869609 in words is "nine hundred seventy-six million, eight hundred sixty-nine thousand, six hundred nine".