74872307 has 2 divisors, whose sum is σ = 74872308. Its totient is φ = 74872306.

The previous prime is 74872283. The next prime is 74872309. The reversal of 74872307 is 70327847.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74872307 - 2⁶ = 74872243 is a prime.

Together with 74872309, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74872309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37436153 + 37436154.

It is an arithmetic number, because the mean of its divisors is an integer number (37436154).

Almost surely, 2^74872307 is an apocalyptic number.

74872307 is a deficient number, since it is larger than the sum of its proper divisors (1).

74872307 is an equidigital number, since it uses as much as digits as its factorization.

74872307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65856, while the sum is 38.

The square root of 74872307 is about 8652.8785383825. The cubic root of 74872307 is about 421.4768623668.

The spelling of 74872307 in words is "seventy-four million, eight hundred seventy-two thousand, three hundred seven".