77425699 has 4 divisors (see below), whose sum is σ = 83381536. Its totient is φ = 71469864.

The previous prime is 77425697. The next prime is 77425717. The reversal of 77425699 is 99652477.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99652477 = 1033 ⋅96469.

It is a cyclic number.

It is not a de Polignac number, because 77425699 - 2¹ = 77425697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77425697) 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, 2977899 + ... + 2977924.

It is an arithmetic number, because the mean of its divisors is an integer number (20845384).

Almost surely, 2^77425699 is an apocalyptic number.

77425699 is a deficient number, since it is larger than the sum of its proper divisors (5955837).

77425699 is a wasteful number, since it uses less digits than its factorization.

77425699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5955836.

The product of its digits is 952560, while the sum is 49.

The square root of 77425699 is about 8799.1874056642. The cubic root of 77425699 is about 426.2146548379.

The spelling of 77425699 in words is "seventy-seven million, four hundred twenty-five thousand, six hundred ninety-nine".