76324865 has 4 divisors (see below), whose sum is σ = 91589844. Its totient is φ = 61059888.

The previous prime is 76324813. The next prime is 76324867. The reversal of 76324865 is 56842367.

It is a happy number.

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 60777616 + 15547249 = 7796^2 + 3943^2 .

It is a cyclic number.

It is not a de Polignac number, because 76324865 - 2¹⁴ = 76308481 is a prime.

It is a super-3 number, since 3×76324865³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76324867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7632482 + ... + 7632491.

It is an arithmetic number, because the mean of its divisors is an integer number (22897461).

Almost surely, 2^76324865 is an apocalyptic number.

It is an amenable number.

76324865 is a deficient number, since it is larger than the sum of its proper divisors (15264979).

76324865 is a wasteful number, since it uses less digits than its factorization.

76324865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15264978.

The product of its digits is 241920, while the sum is 41.

The square root of 76324865 is about 8736.4103040093. The cubic root of 76324865 is about 424.1850403474.

The spelling of 76324865 in words is "seventy-six million, three hundred twenty-four thousand, eight hundred sixty-five".