77291133 has 8 divisors (see below), whose sum is σ = 104593248. Its totient is φ = 50758224.

The previous prime is 77291111. The next prime is 77291161. The reversal of 77291133 is 33119277.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 77291133 - 2¹² = 77287037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77291094 and 77291103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77291173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192066 + ... + 192467.

It is an arithmetic number, because the mean of its divisors is an integer number (13074156).

Almost surely, 2^77291133 is an apocalyptic number.

It is an amenable number.

77291133 is a deficient number, since it is larger than the sum of its proper divisors (27302115).

77291133 is a wasteful number, since it uses less digits than its factorization.

77291133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384603.

The product of its digits is 7938, while the sum is 33.

The square root of 77291133 is about 8791.5375788311. The cubic root of 77291133 is about 425.9675910455.

The spelling of 77291133 in words is "seventy-seven million, two hundred ninety-one thousand, one hundred thirty-three".