73724401 has 2 divisors, whose sum is σ = 73724402. Its totient is φ = 73724400.

The previous prime is 73724383. The next prime is 73724419. The reversal of 73724401 is 10442737.

It is a balanced prime because it is at equal distance from previous prime (73724383) and next prime (73724419).

It can be written as a sum of positive squares in only one way, i.e., 44823025 + 28901376 = 6695^2 + 5376^2 .

It is a cyclic number.

It is not a de Polignac number, because 73724401 - 2²¹ = 71627249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73724401.

It is not a weakly prime, because it can be changed into another prime (73724471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36862200 + 36862201.

It is an arithmetic number, because the mean of its divisors is an integer number (36862201).

Almost surely, 2^73724401 is an apocalyptic number.

It is an amenable number.

73724401 is a deficient number, since it is larger than the sum of its proper divisors (1).

73724401 is an equidigital number, since it uses as much as digits as its factorization.

73724401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 73724401 is about 8586.2914578996. The cubic root of 73724401 is about 419.3118000108.

The spelling of 73724401 in words is "seventy-three million, seven hundred twenty-four thousand, four hundred one".