77697422 has 32 divisors (see below), whose sum is σ = 134524800. Its totient is φ = 33285600.

The previous prime is 77697413. The next prime is 77697443. The reversal of 77697422 is 22479677.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112097 + ... + 112787.

It is an arithmetic number, because the mean of its divisors is an integer number (4203900).

Almost surely, 2^77697422 is an apocalyptic number.

77697422 is a deficient number, since it is larger than the sum of its proper divisors (56827378).

77697422 is a wasteful number, since it uses less digits than its factorization.

77697422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992.

The product of its digits is 296352, while the sum is 44.

The square root of 77697422 is about 8814.6141152066. The cubic root of 77697422 is about 426.7126682443.

The spelling of 77697422 in words is "seventy-seven million, six hundred ninety-seven thousand, four hundred twenty-two".