74247353 has 2 divisors, whose sum is σ = 74247354. Its totient is φ = 74247352.

The previous prime is 74247343. The next prime is 74247359. The reversal of 74247353 is 35374247.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53114944 + 21132409 = 7288^2 + 4597^2 .

It is a cyclic number.

It is not a de Polignac number, because 74247353 - 2⁸ = 74247097 is a prime.

It is a super-3 number, since 3×74247353³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (74247359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37123676 + 37123677.

It is an arithmetic number, because the mean of its divisors is an integer number (37123677).

Almost surely, 2^74247353 is an apocalyptic number.

It is an amenable number.

74247353 is a deficient number, since it is larger than the sum of its proper divisors (1).

74247353 is an equidigital number, since it uses as much as digits as its factorization.

74247353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 35.

The square root of 74247353 is about 8616.6903739197. The cubic root of 74247353 is about 420.3009049274.

The spelling of 74247353 in words is "seventy-four million, two hundred forty-seven thousand, three hundred fifty-three".