73720601 has 4 divisors (see below), whose sum is σ = 73742592. Its totient is φ = 73698612.

The previous prime is 73720597. The next prime is 73720609. The reversal of 73720601 is 10602737.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 73720601 - 2² = 73720597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73720609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4805 + ... + 13058.

It is an arithmetic number, because the mean of its divisors is an integer number (18435648).

Almost surely, 2^73720601 is an apocalyptic number.

It is an amenable number.

73720601 is a deficient number, since it is larger than the sum of its proper divisors (21991).

73720601 is a wasteful number, since it uses less digits than its factorization.

73720601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21990.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 73720601 is about 8586.0701720869. The cubic root of 73720601 is about 419.3045956470.

The spelling of 73720601 in words is "seventy-three million, seven hundred twenty thousand, six hundred one".