76160809 has 4 divisors (see below), whose sum is σ = 76376916. Its totient is φ = 75944704.

The previous prime is 76160801. The next prime is 76160813. The reversal of 76160809 is 90806167.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46621584 + 29539225 = 6828^2 + 5435^2 .

It is a cyclic number.

It is not a de Polignac number, because 76160809 - 2³ = 76160801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76160801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107524 + ... + 108229.

It is an arithmetic number, because the mean of its divisors is an integer number (19094229).

Almost surely, 2^76160809 is an apocalyptic number.

It is an amenable number.

76160809 is a deficient number, since it is larger than the sum of its proper divisors (216107).

76160809 is a wasteful number, since it uses less digits than its factorization.

76160809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216106.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 76160809 is about 8727.0160421532. The cubic root of 76160809 is about 423.8809017131.

The spelling of 76160809 in words is "seventy-six million, one hundred sixty thousand, eight hundred nine".