73665983 has 8 divisors (see below), whose sum is σ = 77940720. Its totient is φ = 69431040.

The previous prime is 73665973. The next prime is 73665989. The reversal of 73665983 is 38956637.

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 73665983 - 2⁸ = 73665727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73665989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6098 + ... + 13583.

It is an arithmetic number, because the mean of its divisors is an integer number (9742590).

Almost surely, 2^73665983 is an apocalyptic number.

73665983 is a deficient number, since it is larger than the sum of its proper divisors (4274737).

73665983 is a wasteful number, since it uses less digits than its factorization.

73665983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19897.

The product of its digits is 816480, while the sum is 47.

The square root of 73665983 is about 8582.8889658436. Note that the first 3 decimals coincide. The cubic root of 73665983 is about 419.2010188259.

The spelling of 73665983 in words is "seventy-three million, six hundred sixty-five thousand, nine hundred eighty-three".