76853209 has 8 divisors (see below), whose sum is σ = 81505440. Its totient is φ = 72215616.

The previous prime is 76853207. The next prime is 76853237. The reversal of 76853209 is 90235867.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 76853209 - 2¹ = 76853207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76853201) 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, 8302 + ... + 14920.

It is an arithmetic number, because the mean of its divisors is an integer number (10188180).

Almost surely, 2^76853209 is an apocalyptic number.

It is an amenable number.

76853209 is a deficient number, since it is larger than the sum of its proper divisors (4652231).

76853209 is a wasteful number, since it uses less digits than its factorization.

76853209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7319.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 76853209 is about 8766.5962037726. The cubic root of 76853209 is about 425.1615699416.

The spelling of 76853209 in words is "seventy-six million, eight hundred fifty-three thousand, two hundred nine".