74347243 has 2 divisors, whose sum is σ = 74347244. Its totient is φ = 74347242.

The previous prime is 74347237. The next prime is 74347249. The reversal of 74347243 is 34274347.

It is a balanced prime because it is at equal distance from previous prime (74347237) and next prime (74347249).

It is a cyclic number.

It is not a de Polignac number, because 74347243 - 2⁹ = 74346731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74347199 and 74347208.

It is not a weakly prime, because it can be changed into another prime (74347249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37173621 + 37173622.

It is an arithmetic number, because the mean of its divisors is an integer number (37173622).

Almost surely, 2^74347243 is an apocalyptic number.

74347243 is a deficient number, since it is larger than the sum of its proper divisors (1).

74347243 is an equidigital number, since it uses as much as digits as its factorization.

74347243 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 74347243 is about 8622.4847346922. The cubic root of 74347243 is about 420.4893069011.

The spelling of 74347243 in words is "seventy-four million, three hundred forty-seven thousand, two hundred forty-three".