74400629 has 2 divisors, whose sum is σ = 74400630. Its totient is φ = 74400628.

The previous prime is 74400583. The next prime is 74400643. The reversal of 74400629 is 92600447.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40934404 + 33466225 = 6398^2 + 5785^2 .

It is an emirp because it is prime and its reverse (92600447) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74400629 - 2⁸ = 74400373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74400595 and 74400604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74400679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37200314 + 37200315.

It is an arithmetic number, because the mean of its divisors is an integer number (37200315).

Almost surely, 2^74400629 is an apocalyptic number.

It is an amenable number.

74400629 is a deficient number, since it is larger than the sum of its proper divisors (1).

74400629 is an equidigital number, since it uses as much as digits as its factorization.

74400629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 74400629 is about 8625.5799225327. The cubic root of 74400629 is about 420.5899287502.

The spelling of 74400629 in words is "seventy-four million, four hundred thousand, six hundred twenty-nine".