74380829 has 2 divisors, whose sum is σ = 74380830. Its totient is φ = 74380828.

The previous prime is 74380819. The next prime is 74380843. The reversal of 74380829 is 92808347.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46607929 + 27772900 = 6827^2 + 5270^2 .

It is an emirp because it is prime and its reverse (92808347) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74380829 - 2²⁰ = 73332253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74380819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37190414 + 37190415.

It is an arithmetic number, because the mean of its divisors is an integer number (37190415).

Almost surely, 2^74380829 is an apocalyptic number.

It is an amenable number.

74380829 is a deficient number, since it is larger than the sum of its proper divisors (1).

74380829 is an equidigital number, since it uses as much as digits as its factorization.

74380829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 74380829 is about 8624.4320972456. The cubic root of 74380829 is about 420.5526153585.

The spelling of 74380829 in words is "seventy-four million, three hundred eighty thousand, eight hundred twenty-nine".