74724343 has 2 divisors, whose sum is σ = 74724344. Its totient is φ = 74724342.

The previous prime is 74724341. The next prime is 74724347. The reversal of 74724343 is 34342747.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74724343 - 2¹ = 74724341 is a prime.

Together with 74724341, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 74724299 and 74724308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74724341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37362171 + 37362172.

It is an arithmetic number, because the mean of its divisors is an integer number (37362172).

Almost surely, 2^74724343 is an apocalyptic number.

74724343 is a deficient number, since it is larger than the sum of its proper divisors (1).

74724343 is an equidigital number, since it uses as much as digits as its factorization.

74724343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 34.

The square root of 74724343 is about 8644.3243229300. The cubic root of 74724343 is about 421.1990358852.

The spelling of 74724343 in words is "seventy-four million, seven hundred twenty-four thousand, three hundred forty-three".