74743829 has 2 divisors, whose sum is σ = 74743830. Its totient is φ = 74743828.

The previous prime is 74743789. The next prime is 74743831. The reversal of 74743829 is 92834747.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52635025 + 22108804 = 7255^2 + 4702^2 .

It is a cyclic number.

It is not a de Polignac number, because 74743829 - 2¹² = 74739733 is a prime.

Together with 74743831, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74743829.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74743429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37371914 + 37371915.

It is an arithmetic number, because the mean of its divisors is an integer number (37371915).

Almost surely, 2^74743829 is an apocalyptic number.

It is an amenable number.

74743829 is a deficient number, since it is larger than the sum of its proper divisors (1).

74743829 is an equidigital number, since it uses as much as digits as its factorization.

74743829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 44.

The square root of 74743829 is about 8645.4513473849. The cubic root of 74743829 is about 421.2356449775.

The spelling of 74743829 in words is "seventy-four million, seven hundred forty-three thousand, eight hundred twenty-nine".