73409965 has 8 divisors (see below), whose sum is σ = 88149600. Its totient is φ = 58689552.

The previous prime is 73409923. The next prime is 73409969. The reversal of 73409965 is 56990437.

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 73409965 - 2⁷ = 73409837 is a prime.

It is a super-2 number, since 2×73409965² = 10778045922602450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73409969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5686 + ... + 13384.

It is an arithmetic number, because the mean of its divisors is an integer number (11018700).

Almost surely, 2^73409965 is an apocalyptic number.

It is an amenable number.

73409965 is a deficient number, since it is larger than the sum of its proper divisors (14739635).

73409965 is a wasteful number, since it uses less digits than its factorization.

73409965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9611.

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 73409965 is about 8567.9615428642. The cubic root of 73409965 is about 418.7148261835.

The spelling of 73409965 in words is "seventy-three million, four hundred nine thousand, nine hundred sixty-five".