77830833 has 16 divisors (see below), whose sum is σ = 106771392. Its totient is φ = 50400000.

The previous prime is 77830829. The next prime is 77830847. The reversal of 77830833 is 33803877.

It is not a de Polignac number, because 77830833 - 2² = 77830829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77830791 and 77830800.

It is not an unprimeable number, because it can be changed into a prime (77830813) 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 15 ways as a sum of consecutive naturals, for example, 29613 + ... + 32133.

It is an arithmetic number, because the mean of its divisors is an integer number (6673212).

Almost surely, 2^77830833 is an apocalyptic number.

It is an amenable number.

77830833 is a deficient number, since it is larger than the sum of its proper divisors (28940559).

77830833 is a wasteful number, since it uses less digits than its factorization.

77830833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2816.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 77830833 is about 8822.1784724636. The cubic root of 77830833 is about 426.9567587618.

The spelling of 77830833 in words is "seventy-seven million, eight hundred thirty thousand, eight hundred thirty-three".