77422699 has 4 divisors (see below), whose sum is σ = 77521864. Its totient is φ = 77323536.

The previous prime is 77422693. The next prime is 77422711. The reversal of 77422699 is 99622477.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99622477 = 1213 ⋅82129.

It is a cyclic number.

It is not a de Polignac number, because 77422699 - 2⁷ = 77422571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77422693) 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 3 ways as a sum of consecutive naturals, for example, 48402 + ... + 49975.

It is an arithmetic number, because the mean of its divisors is an integer number (19380466).

Almost surely, 2^77422699 is an apocalyptic number.

77422699 is a deficient number, since it is larger than the sum of its proper divisors (99165).

77422699 is an equidigital number, since it uses as much as digits as its factorization.

77422699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99164.

The product of its digits is 381024, while the sum is 46.

The square root of 77422699 is about 8799.0169337262. The cubic root of 77422699 is about 426.2091499453.

The spelling of 77422699 in words is "seventy-seven million, four hundred twenty-two thousand, six hundred ninety-nine".