73724201 has 4 divisors (see below), whose sum is σ = 73758804. Its totient is φ = 73689600.

The previous prime is 73724197. The next prime is 73724227. The reversal of 73724201 is 10242737.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10242737 = 1171 ⋅8747.

It can be written as a sum of positive squares in 2 ways, for example, as 35581225 + 38142976 = 5965^2 + 6176^2 .

It is a cyclic number.

It is not a de Polignac number, because 73724201 - 2² = 73724197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73724401) 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, 13880 + ... + 18441.

It is an arithmetic number, because the mean of its divisors is an integer number (18439701).

Almost surely, 2^73724201 is an apocalyptic number.

It is an amenable number.

73724201 is a deficient number, since it is larger than the sum of its proper divisors (34603).

73724201 is a wasteful number, since it uses less digits than its factorization.

73724201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34602.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 73724201 is about 8586.2798114201. The cubic root of 73724201 is about 419.3114208399.

Adding to 73724201 its reverse (10242737), we get a palindrome (83966938).

The spelling of 73724201 in words is "seventy-three million, seven hundred twenty-four thousand, two hundred one".