74429447 has 2 divisors, whose sum is σ = 74429448. Its totient is φ = 74429446.

The previous prime is 74429423. The next prime is 74429471. The reversal of 74429447 is 74492447.

It is a balanced prime because it is at equal distance from previous prime (74429423) and next prime (74429471).

It is an emirp because it is prime and its reverse (74492447) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74429447 - 2¹⁶ = 74363911 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74429347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37214723 + 37214724.

It is an arithmetic number, because the mean of its divisors is an integer number (37214724).

Almost surely, 2^74429447 is an apocalyptic number.

74429447 is a deficient number, since it is larger than the sum of its proper divisors (1).

74429447 is an equidigital number, since it uses as much as digits as its factorization.

74429447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 225792, while the sum is 41.

The square root of 74429447 is about 8627.2502571793. The cubic root of 74429447 is about 420.6442248682.

The spelling of 74429447 in words is "seventy-four million, four hundred twenty-nine thousand, four hundred forty-seven".