77696943 has 8 divisors (see below), whose sum is σ = 106937856. Its totient is φ = 50127000.

The previous prime is 77696897. The next prime is 77697007. The reversal of 77696943 is 34969677.

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

It is not a de Polignac number, because 77696943 - 2⁹ = 77696431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77626943) 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, 417633 + ... + 417818.

It is an arithmetic number, because the mean of its divisors is an integer number (13367232).

Almost surely, 2^77696943 is an apocalyptic number.

77696943 is a deficient number, since it is larger than the sum of its proper divisors (29240913).

77696943 is a wasteful number, since it uses less digits than its factorization.

77696943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835485.

The product of its digits is 1714608, while the sum is 51.

The square root of 77696943 is about 8814.5869443781. The cubic root of 77696943 is about 426.7117913564.

The spelling of 77696943 in words is "seventy-seven million, six hundred ninety-six thousand, nine hundred forty-three".