73686985 has 16 divisors (see below), whose sum is σ = 89921664. Its totient is φ = 57958912.

The previous prime is 73686971. The next prime is 73687001. The reversal of 73686985 is 58968637.

It is a cyclic number.

It is not a de Polignac number, because 73686985 - 2¹¹ = 73684937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146244 + ... + 146746.

It is an arithmetic number, because the mean of its divisors is an integer number (5620104).

Almost surely, 2^73686985 is an apocalyptic number.

It is an amenable number.

73686985 is a deficient number, since it is larger than the sum of its proper divisors (16234679).

73686985 is a wasteful number, since it uses less digits than its factorization.

73686985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944.

The product of its digits is 2177280, while the sum is 52.

The square root of 73686985 is about 8584.1123594697. The cubic root of 73686985 is about 419.2408527850.

The spelling of 73686985 in words is "seventy-three million, six hundred eighty-six thousand, nine hundred eighty-five".