74200739 has 2 divisors, whose sum is σ = 74200740. Its totient is φ = 74200738.

The previous prime is 74200729. The next prime is 74200741. The reversal of 74200739 is 93700247.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74200739 - 2⁴ = 74200723 is a prime.

It is a super-2 number, since 2×74200739² = 11011499336292242, which contains 22 as substring.

Together with 74200741, 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 (74200729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37100369 + 37100370.

It is an arithmetic number, because the mean of its divisors is an integer number (37100370).

Almost surely, 2^74200739 is an apocalyptic number.

74200739 is a deficient number, since it is larger than the sum of its proper divisors (1).

74200739 is an equidigital number, since it uses as much as digits as its factorization.

74200739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 74200739 is about 8613.9850824110. The cubic root of 74200739 is about 420.2129286918.

The spelling of 74200739 in words is "seventy-four million, two hundred thousand, seven hundred thirty-nine".