73651985 has 8 divisors (see below), whose sum is σ = 96417216. Its totient is φ = 53565040.

The previous prime is 73651969. The next prime is 73651987. The reversal of 73651985 is 58915637.

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

It is not a de Polignac number, because 73651985 - 2⁴ = 73651969 is a prime.

It is a super-2 number, since 2×73651985² = 10849229788880450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73651987) 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 7 ways as a sum of consecutive naturals, for example, 669509 + ... + 669618.

It is an arithmetic number, because the mean of its divisors is an integer number (12052152).

Almost surely, 2^73651985 is an apocalyptic number.

It is an amenable number.

73651985 is a deficient number, since it is larger than the sum of its proper divisors (22765231).

73651985 is a wasteful number, since it uses less digits than its factorization.

73651985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339143.

The product of its digits is 226800, while the sum is 44.

The square root of 73651985 is about 8582.0734674087. The cubic root of 73651985 is about 419.1744649706.

The spelling of 73651985 in words is "seventy-three million, six hundred fifty-one thousand, nine hundred eighty-five".