74868047 has 2 divisors, whose sum is σ = 74868048. Its totient is φ = 74868046.

The previous prime is 74868023. The next prime is 74868049. The reversal of 74868047 is 74086847.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74868047 - 2¹² = 74863951 is a prime.

Together with 74868049, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 74867989 and 74868007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74868049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37434023 + 37434024.

It is an arithmetic number, because the mean of its divisors is an integer number (37434024).

Almost surely, 2^74868047 is an apocalyptic number.

74868047 is a deficient number, since it is larger than the sum of its proper divisors (1).

74868047 is an equidigital number, since it uses as much as digits as its factorization.

74868047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 301056, while the sum is 44.

The square root of 74868047 is about 8652.6323740235. The cubic root of 74868047 is about 421.4688686436.

The spelling of 74868047 in words is "seventy-four million, eight hundred sixty-eight thousand, forty-seven".