74394629 has 2 divisors, whose sum is σ = 74394630. Its totient is φ = 74394628.

The previous prime is 74394613. The next prime is 74394631. The reversal of 74394629 is 92649347.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60481729 + 13912900 = 7777^2 + 3730^2 .

It is a cyclic number.

It is not a de Polignac number, because 74394629 - 2⁴ = 74394613 is a prime.

Together with 74394631, 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 74394629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74394689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37197314 + 37197315.

It is an arithmetic number, because the mean of its divisors is an integer number (37197315).

Almost surely, 2^74394629 is an apocalyptic number.

It is an amenable number.

74394629 is a deficient number, since it is larger than the sum of its proper divisors (1).

74394629 is an equidigital number, since it uses as much as digits as its factorization.

74394629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 44.

The square root of 74394629 is about 8625.2321128188. The cubic root of 74394629 is about 420.5786223610.

The spelling of 74394629 in words is "seventy-four million, three hundred ninety-four thousand, six hundred twenty-nine".