78324611 has 4 divisors (see below), whose sum is σ = 78730632. Its totient is φ = 77918592.

The previous prime is 78324553. The next prime is 78324613. The reversal of 78324611 is 11642387.

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

It is a cyclic number.

It is not a de Polignac number, because 78324611 - 2¹⁴ = 78308227 is a prime.

It is a super-3 number, since 3×78324611³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78324613) 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, 202721 + ... + 203106.

It is an arithmetic number, because the mean of its divisors is an integer number (19682658).

Almost surely, 2^78324611 is an apocalyptic number.

78324611 is a deficient number, since it is larger than the sum of its proper divisors (406021).

78324611 is a wasteful number, since it uses less digits than its factorization.

78324611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406020.

The product of its digits is 8064, while the sum is 32.

The square root of 78324611 is about 8850.1192647331. The cubic root of 78324611 is about 427.8577623693.

Adding to 78324611 its reverse (11642387), we get a palindrome (89966998).

The spelling of 78324611 in words is "seventy-eight million, three hundred twenty-four thousand, six hundred eleven".