73720607 has 4 divisors (see below), whose sum is σ = 74450616. Its totient is φ = 72990600.

The previous prime is 73720597. The next prime is 73720609. The reversal of 73720607 is 70602737.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70602737 = 101 ⋅699037.

It is a cyclic number.

It is not a de Polignac number, because 73720607 - 2²⁴ = 56943391 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 (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, 364853 + ... + 365054.

It is an arithmetic number, because the mean of its divisors is an integer number (18612654).

Almost surely, 2^73720607 is an apocalyptic number.

73720607 is a deficient number, since it is larger than the sum of its proper divisors (730009).

73720607 is a wasteful number, since it uses less digits than its factorization.

73720607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730008.

The product of its (nonzero) digits is 12348, while the sum is 32.

The square root of 73720607 is about 8586.0705214900. The cubic root of 73720607 is about 419.3046070225.

The spelling of 73720607 in words is "seventy-three million, seven hundred twenty thousand, six hundred seven".