74838823 has 2 divisors, whose sum is σ = 74838824. Its totient is φ = 74838822.

The previous prime is 74838793. The next prime is 74838889. The reversal of 74838823 is 32883847.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74838823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74838823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74838623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37419411 + 37419412.

It is an arithmetic number, because the mean of its divisors is an integer number (37419412).

Almost surely, 2^74838823 is an apocalyptic number.

74838823 is a deficient number, since it is larger than the sum of its proper divisors (1).

74838823 is an equidigital number, since it uses as much as digits as its factorization.

74838823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 258048, while the sum is 43.

The square root of 74838823 is about 8650.9434745581. The cubic root of 74838823 is about 421.4140227751.

The spelling of 74838823 in words is "seventy-four million, eight hundred thirty-eight thousand, eight hundred twenty-three".