73420665 has 8 divisors (see below), whose sum is σ = 117473088. Its totient is φ = 39157680.

The previous prime is 73420657. The next prime is 73420667. The reversal of 73420665 is 56602437.

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

It is not a de Polignac number, because 73420665 - 2³ = 73420657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73420667) 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, 2447341 + ... + 2447370.

It is an arithmetic number, because the mean of its divisors is an integer number (14684136).

Almost surely, 2^73420665 is an apocalyptic number.

It is an amenable number.

73420665 is a deficient number, since it is larger than the sum of its proper divisors (44052423).

73420665 is a wasteful number, since it uses less digits than its factorization.

73420665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4894719.

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 73420665 is about 8568.5859393485. The cubic root of 73420665 is about 418.7351687032.

The spelling of 73420665 in words is "seventy-three million, four hundred twenty thousand, six hundred sixty-five".