73724227 has 2 divisors, whose sum is σ = 73724228. Its totient is φ = 73724226.

The previous prime is 73724197. The next prime is 73724249. The reversal of 73724227 is 72242737.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73724227 - 2¹⁵ = 73691459 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73724192 and 73724201.

It is not a weakly prime, because it can be changed into another prime (73724267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36862113 + 36862114.

It is an arithmetic number, because the mean of its divisors is an integer number (36862114).

Almost surely, 2^73724227 is an apocalyptic number.

73724227 is a deficient number, since it is larger than the sum of its proper divisors (1).

73724227 is an equidigital number, since it uses as much as digits as its factorization.

73724227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32928, while the sum is 34.

The square root of 73724227 is about 8586.2813254633. The cubic root of 73724227 is about 419.3114701322.

It can be divided in two parts, 737 and 24227, that added together give a square (24964 = 158²).

The spelling of 73724227 in words is "seventy-three million, seven hundred twenty-four thousand, two hundred twenty-seven".