73685677 has 4 divisors (see below), whose sum is σ = 79353820. Its totient is φ = 68017536.

The previous prime is 73685671. The next prime is 73685719. The reversal of 73685677 is 77658637.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12752041 + 60933636 = 3571^2 + 7806^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73685677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73685677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73685671) 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, 2834052 + ... + 2834077.

It is an arithmetic number, because the mean of its divisors is an integer number (19838455).

Almost surely, 2^73685677 is an apocalyptic number.

It is an amenable number.

73685677 is a deficient number, since it is larger than the sum of its proper divisors (5668143).

73685677 is a wasteful number, since it uses less digits than its factorization.

73685677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5668142.

The product of its digits is 1481760, while the sum is 49.

The square root of 73685677 is about 8584.0361718716. The cubic root of 73685677 is about 419.2383721557.

The spelling of 73685677 in words is "seventy-three million, six hundred eighty-five thousand, six hundred seventy-seven".