74392243 has 2 divisors, whose sum is σ = 74392244. Its totient is φ = 74392242.

The previous prime is 74392229. The next prime is 74392247. The reversal of 74392243 is 34229347.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74392243 - 2¹⁷ = 74261171 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74392199 and 74392208.

It is not a weakly prime, because it can be changed into another prime (74392247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37196121 + 37196122.

It is an arithmetic number, because the mean of its divisors is an integer number (37196122).

Almost surely, 2^74392243 is an apocalyptic number.

74392243 is a deficient number, since it is larger than the sum of its proper divisors (1).

74392243 is an equidigital number, since it uses as much as digits as its factorization.

74392243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 34.

The square root of 74392243 is about 8625.0937965914. The cubic root of 74392243 is about 420.5741260179.

The spelling of 74392243 in words is "seventy-four million, three hundred ninety-two thousand, two hundred forty-three".