77908334 has 24 divisors (see below), whose sum is σ = 136688400. Its totient is φ = 33290208.

The previous prime is 77908321. The next prime is 77908343. The reversal of 77908334 is 43380977.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 77908291 and 77908300.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 231014 + ... + 231350.

It is an arithmetic number, because the mean of its divisors is an integer number (5695350).

Almost surely, 2^77908334 is an apocalyptic number.

77908334 is a deficient number, since it is larger than the sum of its proper divisors (58780066).

77908334 is an frugal number, since it uses more digits than its factorization.

77908334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 77908334 is about 8826.5697753997. The cubic root of 77908334 is about 427.0984275472.

The spelling of 77908334 in words is "seventy-seven million, nine hundred eight thousand, three hundred thirty-four".