73311685 has 4 divisors (see below), whose sum is σ = 87974028. Its totient is φ = 58649344.

The previous prime is 73311673. The next prime is 73311713. The reversal of 73311685 is 58611337.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58611337 = 23 ⋅2548319.

It can be written as a sum of positive squares in 2 ways, for example, as 47087044 + 26224641 = 6862^2 + 5121^2 .

It is a cyclic number.

It is not a de Polignac number, because 73311685 - 2¹³ = 73303493 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73311685.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7331164 + ... + 7331173.

It is an arithmetic number, because the mean of its divisors is an integer number (21993507).

Almost surely, 2^73311685 is an apocalyptic number.

It is an amenable number.

73311685 is a deficient number, since it is larger than the sum of its proper divisors (14662343).

73311685 is a wasteful number, since it uses less digits than its factorization.

73311685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14662342.

The product of its digits is 15120, while the sum is 34.

The square root of 73311685 is about 8562.2243021308. The cubic root of 73311685 is about 418.5278866628.

The spelling of 73311685 in words is "seventy-three million, three hundred eleven thousand, six hundred eighty-five".