77673109 has 8 divisors (see below), whose sum is σ = 78640128. Its totient is φ = 76712160.

The previous prime is 77673103. The next prime is 77673131. The reversal of 77673109 is 90137677.

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

It is a cyclic number.

It is not a de Polignac number, because 77673109 - 2¹⁷ = 77542037 is a prime.

It is a super-2 number, since 2×77673109² = 12066223723451762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77673103) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 27564 + ... + 30250.

It is an arithmetic number, because the mean of its divisors is an integer number (9830016).

Almost surely, 2^77673109 is an apocalyptic number.

It is an amenable number.

77673109 is a deficient number, since it is larger than the sum of its proper divisors (967019).

77673109 is a wasteful number, since it uses less digits than its factorization.

77673109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3035.

The product of its (nonzero) digits is 55566, while the sum is 40.

The square root of 77673109 is about 8813.2348771606. The cubic root of 77673109 is about 426.6681547664.

The spelling of 77673109 in words is "seventy-seven million, six hundred seventy-three thousand, one hundred nine".