77327121 has 8 divisors (see below), whose sum is σ = 103396320. Its totient is φ = 51404672.

The previous prime is 77327083. The next prime is 77327149. The reversal of 77327121 is 12172377.

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 77327121 - 2¹⁹ = 76802833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77327171) 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, 35451 + ... + 37568.

It is an arithmetic number, because the mean of its divisors is an integer number (12924540).

Almost surely, 2^77327121 is an apocalyptic number.

It is an amenable number.

77327121 is a deficient number, since it is larger than the sum of its proper divisors (26069199).

77327121 is a wasteful number, since it uses less digits than its factorization.

77327121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73375.

The product of its digits is 4116, while the sum is 30.

The square root of 77327121 is about 8793.5840815904. The cubic root of 77327121 is about 426.0336932508.

Adding to 77327121 its reverse (12172377), we get a palindrome (89499498).

The spelling of 77327121 in words is "seventy-seven million, three hundred twenty-seven thousand, one hundred twenty-one".