74104739 has 2 divisors, whose sum is σ = 74104740. Its totient is φ = 74104738.

The previous prime is 74104711. The next prime is 74104741. The reversal of 74104739 is 93740147.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74104739 is a prime.

Together with 74104741, 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 = 74104699 and 74104708.

It is not a weakly prime, because it can be changed into another prime (74104039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37052369 + 37052370.

It is an arithmetic number, because the mean of its divisors is an integer number (37052370).

Almost surely, 2^74104739 is an apocalyptic number.

74104739 is a deficient number, since it is larger than the sum of its proper divisors (1).

74104739 is an equidigital number, since it uses as much as digits as its factorization.

74104739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 74104739 is about 8608.4109451164. The cubic root of 74104739 is about 420.0316283816.

The spelling of 74104739 in words is "seventy-four million, one hundred four thousand, seven hundred thirty-nine".