77691333 has 8 divisors (see below), whose sum is σ = 103631328. Its totient is φ = 51772784.

The previous prime is 77691307. The next prime is 77691347. The reversal of 77691333 is 33319677.

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 77691333 - 2¹⁸ = 77429189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77691291 and 77691300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77691353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7510 + ... + 14552.

It is an arithmetic number, because the mean of its divisors is an integer number (12953916).

Almost surely, 2^77691333 is an apocalyptic number.

It is an amenable number.

77691333 is a deficient number, since it is larger than the sum of its proper divisors (25939995).

77691333 is a wasteful number, since it uses less digits than its factorization.

77691333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10723.

The product of its digits is 71442, while the sum is 39.

The square root of 77691333 is about 8814.2687161216. The cubic root of 77691333 is about 426.7015210649.

The spelling of 77691333 in words is "seventy-seven million, six hundred ninety-one thousand, three hundred thirty-three".